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	<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Porth_y_Casul</id>
	<title>Porth y Casul - Hanes golygu</title>
	<link rel="self" type="application/atom+xml" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Porth_y_Casul"/>
	<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;action=history"/>
	<updated>2026-05-06T14:38:02Z</updated>
	<subtitle>Hanes diwygio&#039;r dudalen hon ar y wici</subtitle>
	<generator>MediaWiki 1.43.1</generator>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16330&amp;oldid=prev</id>
		<title>Cyfaill Eben am 15:36, 23 Ebrill 2025</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16330&amp;oldid=prev"/>
		<updated>2025-04-23T15:36:00Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 16:36, 23 Ebrill 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l3&quot;&gt;Llinell 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Enw mwy diweddar (sydd eto ar goll) ar y lle dan sylw yw Porth y Gaseg, ond mae&amp;#039;n debyg mai ymgais i wneud synnwyr o&amp;#039;r gair anghyfarwydd &amp;quot;casul&amp;quot; sydd yma.&amp;lt;ref&amp;gt;Patrick Sims-Williams, &amp;#039;&amp;#039;Buchedd Beuno. The Middle Welsh&amp;#039;&amp;#039; Life &amp;#039;&amp;#039;of St Beuno&amp;#039;&amp;#039; (Dulyn, 2018), tt.32, 64.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Enw mwy diweddar (sydd eto ar goll) ar y lle dan sylw yw Porth y Gaseg, ond mae&amp;#039;n debyg mai ymgais i wneud synnwyr o&amp;#039;r gair anghyfarwydd &amp;quot;casul&amp;quot; sydd yma.&amp;lt;ref&amp;gt;Patrick Sims-Williams, &amp;#039;&amp;#039;Buchedd Beuno. The Middle Welsh&amp;#039;&amp;#039; Life &amp;#039;&amp;#039;of St Beuno&amp;#039;&amp;#039; (Dulyn, 2018), tt.32, 64.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Roedd [[Eben Fardd]] o&#039;r farn mai porthladd bychan ger [[Clynnog Fawr]] ei hun oedd Porth y Casul. Bu&#039;n holi pobl yr ardal ond heb ganfod y lleoliad, meddai, ond dichon mai yn agos i [[Bachwen]] oedd yn ei feddwl&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. &lt;/del&gt;a hynny lle mae nant &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;bychan &lt;/del&gt;yn cyrraedd y môr.&amp;lt;ref&amp;gt;Eben Fardd, &#039;&#039;Y Gwladgarwr&#039;&#039; (Cyf.VI, 1838) t.44&amp;lt;/ref&amp;gt;   &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Roedd [[Eben Fardd]] o&#039;r farn mai porthladd bychan ger [[Clynnog Fawr]] ei hun oedd Porth y Casul. Bu&#039;n holi pobl yr ardal ond heb ganfod y lleoliad, meddai, ond dichon mai yn agos i [[Bachwen]] oedd yn ei feddwl&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, &lt;/ins&gt;a hynny lle mae nant &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;fechan &lt;/ins&gt;yn cyrraedd y môr.&amp;lt;ref&amp;gt;Eben Fardd, &#039;&#039;Y Gwladgarwr&#039;&#039; (Cyf.VI, 1838) t.44&amp;lt;/ref&amp;gt;   &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Cyfeiriadau==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Cyfeiriadau==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Cyfaill Eben</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16324&amp;oldid=prev</id>
		<title>Irion am 08:52, 22 Ebrill 2025</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16324&amp;oldid=prev"/>
		<updated>2025-04-22T08:52:26Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 09:52, 22 Ebrill 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l7&quot;&gt;Llinell 7:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 7:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori:Daearyddiaeth ffisegol]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori:Daearyddiaeth ffisegol]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori:Harbyrau]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori:Harbyrau &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a glanfeydd&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori:Enwau lleoedd]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori:Enwau lleoedd]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16318&amp;oldid=prev</id>
		<title>Irion am 09:47, 21 Ebrill 2025</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16318&amp;oldid=prev"/>
		<updated>2025-04-21T09:47:23Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 10:47, 21 Ebrill 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mae lleoliad &amp;#039;&amp;#039;&amp;#039;Porth y Casul&amp;#039;&amp;#039;&amp;#039; wedi mynd ar goll, ond dywedir mai wyth milltir o Gaernarfon ydoedd. Cysylltir yr enw gyda&amp;#039;r traddodiad fod Santes Gwenffrewi wedi arfer anfon casul (sef dilledyn clerigol) i [[Sant Beuno]] bob blwyddyn, a&amp;#039;i fod wedi cyrraedd yn wyrthiol yn y borth dan sylw, a hynny heb iddo gael ei wlychu o gwbl. Mae hyn hefyd yn gyfrifol am enw amgen ar y lle, sef Porta Sachlen (sef Porth Sych-len). Mae&amp;#039;r Athro Patrick Sims-Williams yn awgrymu y gallai [[Porth Clynnog]] ger Aberdesach fod yn lleoliad posibl ar gyfer Porth y Casul.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mae lleoliad &amp;#039;&amp;#039;&amp;#039;Porth y Casul&amp;#039;&amp;#039;&amp;#039; wedi mynd ar goll, ond dywedir mai wyth milltir o Gaernarfon ydoedd. Cysylltir yr enw gyda&amp;#039;r traddodiad fod Santes Gwenffrewi wedi arfer anfon casul (sef dilledyn clerigol) i [[Sant Beuno]] bob blwyddyn, a&amp;#039;i fod wedi cyrraedd yn wyrthiol yn y borth dan sylw, a hynny heb iddo gael ei wlychu o gwbl. Mae hyn hefyd yn gyfrifol am enw amgen ar y lle, sef Porta Sachlen (sef Porth Sych-len). Mae&amp;#039;r Athro Patrick Sims-Williams yn awgrymu y gallai [[Porth Clynnog]] ger Aberdesach fod yn lleoliad posibl ar gyfer Porth y Casul.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Enw mwy diweddar (sydd eto ar goll) yw Porth y Gaseg, ond mae&#039;n debyg mai ymgais i wneud synnwyr o&#039;r gair anghyfarwydd &quot;casul&quot; sydd yma.&amp;lt;ref&amp;gt;Patrick Sims-Williams, &#039;&#039;Buchedd Beuno. The Middle Welsh&#039;&#039; Life &#039;&#039;of St Beuno&#039;&#039; (Dulyn, 2018), tt.32, 64.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Enw mwy diweddar (sydd eto ar goll) &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ar y lle dan sylw &lt;/ins&gt;yw Porth y Gaseg, ond mae&#039;n debyg mai ymgais i wneud synnwyr o&#039;r gair anghyfarwydd &quot;casul&quot; sydd yma.&amp;lt;ref&amp;gt;Patrick Sims-Williams, &#039;&#039;Buchedd Beuno. The Middle Welsh&#039;&#039; Life &#039;&#039;of St Beuno&#039;&#039; (Dulyn, 2018), tt.32, 64.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Roedd [[Eben Fardd]] o&amp;#039;r farn mai porthladd bychan ger [[Clynnog Fawr]] ei hun oedd Porth y Casul. Bu&amp;#039;n holi pobl yr ardal ond heb ganfod y lleoliad, meddai, ond dichon mai yn agos i [[Bachwen]] oedd yn ei feddwl. a hynny lle mae nant bychan yn cyrraedd y môr.&amp;lt;ref&amp;gt;Eben Fardd, &amp;#039;&amp;#039;Y Gwladgarwr&amp;#039;&amp;#039; (Cyf.VI, 1838) t.44&amp;lt;/ref&amp;gt;   &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Roedd [[Eben Fardd]] o&amp;#039;r farn mai porthladd bychan ger [[Clynnog Fawr]] ei hun oedd Porth y Casul. Bu&amp;#039;n holi pobl yr ardal ond heb ganfod y lleoliad, meddai, ond dichon mai yn agos i [[Bachwen]] oedd yn ei feddwl. a hynny lle mae nant bychan yn cyrraedd y môr.&amp;lt;ref&amp;gt;Eben Fardd, &amp;#039;&amp;#039;Y Gwladgarwr&amp;#039;&amp;#039; (Cyf.VI, 1838) t.44&amp;lt;/ref&amp;gt;   &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16317&amp;oldid=prev</id>
		<title>Irion am 12:47, 19 Ebrill 2025</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16317&amp;oldid=prev"/>
		<updated>2025-04-19T12:47:04Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 13:47, 19 Ebrill 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mae lleoliad &#039;&#039;&#039;Porth y Casul&#039;&#039;&#039; wedi mynd ar goll, ond dywedir mai wyth milltir o Gaernarfon ydoedd. Cysylltir yr enw gyda&#039;r traddodiad fod Santes Gwenffrewi wedi anfon casul (sef dilledyn clerigol) i [[Sant Beuno]] bob blwyddyn, a&#039;i fod wedi cyrraedd yn wyrthiol yn y borth dan sylw, a hynny heb iddo wlychu o gwbl. Mae hyn hefyd yn gyfrifol am enw amgen ar y lle, sef Porta Sachlen (sef Porth Sych-len). Mae&#039;r Athro Patrick Sims-Williams yn awgrymu y gallai [[Porth Clynnog]] ger Aberdesach fod yn lleoliad posibl ar gyfer Porth y Casul.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mae lleoliad &#039;&#039;&#039;Porth y Casul&#039;&#039;&#039; wedi mynd ar goll, ond dywedir mai wyth milltir o Gaernarfon ydoedd. Cysylltir yr enw gyda&#039;r traddodiad fod Santes Gwenffrewi wedi &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;arfer &lt;/ins&gt;anfon casul (sef dilledyn clerigol) i [[Sant Beuno]] bob blwyddyn, a&#039;i fod wedi cyrraedd yn wyrthiol yn y borth dan sylw, a hynny heb iddo &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;gael ei &lt;/ins&gt;wlychu o gwbl. Mae hyn hefyd yn gyfrifol am enw amgen ar y lle, sef Porta Sachlen (sef Porth Sych-len). Mae&#039;r Athro Patrick Sims-Williams yn awgrymu y gallai [[Porth Clynnog]] ger Aberdesach fod yn lleoliad posibl ar gyfer Porth y Casul.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Enw mwy diweddar (sydd eto ar goll) yw Porth y Gaseg, ond mae&amp;#039;n debyg mai ymgais i wneud synnwyr o&amp;#039;r gair anghyfarwydd &amp;quot;casul&amp;quot; sydd yma.&amp;lt;ref&amp;gt;Patrick Sims-Williams, &amp;#039;&amp;#039;Buchedd Beuno. The Middle Welsh&amp;#039;&amp;#039; Life &amp;#039;&amp;#039;of St Beuno&amp;#039;&amp;#039; (Dulyn, 2018), tt.32, 64.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Enw mwy diweddar (sydd eto ar goll) yw Porth y Gaseg, ond mae&amp;#039;n debyg mai ymgais i wneud synnwyr o&amp;#039;r gair anghyfarwydd &amp;quot;casul&amp;quot; sydd yma.&amp;lt;ref&amp;gt;Patrick Sims-Williams, &amp;#039;&amp;#039;Buchedd Beuno. The Middle Welsh&amp;#039;&amp;#039; Life &amp;#039;&amp;#039;of St Beuno&amp;#039;&amp;#039; (Dulyn, 2018), tt.32, 64.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Roedd [[Eben Fardd]] o&#039;r farn mai porthladd bychan ger [[Clynnog Fawr]] ei hun oedd Porth y Casul. Bu&#039;n holi pobl yr ardal ond heb ganfod y lleoliad, meddai, ond dichon mai yn agos i [[Bachwen]] lle mae nant bychan yn cyrraedd y môr.&amp;lt;ref&amp;gt;Eben Fardd, &#039;&#039;Y Gwladgarwr&#039;&#039; (Cyf.VI, 1838) t.44&amp;lt;/ref&amp;gt;   &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Roedd [[Eben Fardd]] o&#039;r farn mai porthladd bychan ger [[Clynnog Fawr]] ei hun oedd Porth y Casul. Bu&#039;n holi pobl yr ardal ond heb ganfod y lleoliad, meddai, ond dichon mai yn agos i [[Bachwen]] &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;oedd yn ei feddwl. a hynny &lt;/ins&gt;lle mae nant bychan yn cyrraedd y môr.&amp;lt;ref&amp;gt;Eben Fardd, &#039;&#039;Y Gwladgarwr&#039;&#039; (Cyf.VI, 1838) t.44&amp;lt;/ref&amp;gt;   &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Cyfeiriadau==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Cyfeiriadau==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16316&amp;oldid=prev</id>
		<title>Irion am 15:37, 18 Ebrill 2025</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16316&amp;oldid=prev"/>
		<updated>2025-04-18T15:37:31Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 16:37, 18 Ebrill 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l3&quot;&gt;Llinell 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 3:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Enw mwy diweddar (sydd eto ar goll) yw Porth y Gaseg, ond mae&amp;#039;n debyg mai ymgais i wneud synnwyr o&amp;#039;r gair anghyfarwydd &amp;quot;casul&amp;quot; sydd yma.&amp;lt;ref&amp;gt;Patrick Sims-Williams, &amp;#039;&amp;#039;Buchedd Beuno. The Middle Welsh&amp;#039;&amp;#039; Life &amp;#039;&amp;#039;of St Beuno&amp;#039;&amp;#039; (Dulyn, 2018), tt.32, 64.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Enw mwy diweddar (sydd eto ar goll) yw Porth y Gaseg, ond mae&amp;#039;n debyg mai ymgais i wneud synnwyr o&amp;#039;r gair anghyfarwydd &amp;quot;casul&amp;quot; sydd yma.&amp;lt;ref&amp;gt;Patrick Sims-Williams, &amp;#039;&amp;#039;Buchedd Beuno. The Middle Welsh&amp;#039;&amp;#039; Life &amp;#039;&amp;#039;of St Beuno&amp;#039;&amp;#039; (Dulyn, 2018), tt.32, 64.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Roedd [[Eben Fardd]] o&#039;r farn mai porthladd bychan ger [[Clynnog Fawr]] ei hun oedd Porth y Casul. Bu&#039;n holi pobl yr ardal ond heb ganfod y lleoliad, meddai, ond dichon mai yn agos i [[Bachwen]] lle mae nant bychan yn cyrraedd y môr.&amp;lt;ref&amp;gt;Eben Fardd, &#039;&#039;Y Gwladgarwr&#039;&#039; (Cyf.VI, 1838) t.44&amp;lt;/ref&amp;gt;  &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Cyfeiriadau==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Cyfeiriadau==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16314&amp;oldid=prev</id>
		<title>Irion: Dechrau tudalen newydd gyda &quot;Mae lleoliad &#039;&#039;&#039;Porth y Casul&#039;&#039;&#039; wedi mynd ar goll, ond dywedir mai wyth milltir o Gaernarfon ydoedd. Cysylltir yr enw gyda&#039;r traddodiad fod Santes Gwenffrewi wedi anfon casul (sef dilledyn clerigol) i Sant Beuno bob blwyddyn, a&#039;i fod wedi cyrraedd yn wyrthiol yn y borth dan sylw, a hynny heb iddo wlychu o gwbl. Mae hyn hefyd yn gyfrifol am enw amgen ar y lle, sef Porta Sachlen (sef Porth Sych-len). Mae&#039;r Athro Patrick Sims-Williams yn awgrymu y gallai Po...&quot;</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Porth_y_Casul&amp;diff=16314&amp;oldid=prev"/>
		<updated>2025-04-18T15:11:24Z</updated>

		<summary type="html">&lt;p&gt;Dechrau tudalen newydd gyda &amp;quot;Mae lleoliad &amp;#039;&amp;#039;&amp;#039;Porth y Casul&amp;#039;&amp;#039;&amp;#039; wedi mynd ar goll, ond dywedir mai wyth milltir o Gaernarfon ydoedd. Cysylltir yr enw gyda&amp;#039;r traddodiad fod Santes Gwenffrewi wedi anfon casul (sef dilledyn clerigol) i &lt;a href=&quot;/wici/Sant_Beuno&quot; class=&quot;mw-redirect&quot; title=&quot;Sant Beuno&quot;&gt;Sant Beuno&lt;/a&gt; bob blwyddyn, a&amp;#039;i fod wedi cyrraedd yn wyrthiol yn y borth dan sylw, a hynny heb iddo wlychu o gwbl. Mae hyn hefyd yn gyfrifol am enw amgen ar y lle, sef Porta Sachlen (sef Porth Sych-len). Mae&amp;#039;r Athro Patrick Sims-Williams yn awgrymu y gallai Po...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Tudalen newydd&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Mae lleoliad &amp;#039;&amp;#039;&amp;#039;Porth y Casul&amp;#039;&amp;#039;&amp;#039; wedi mynd ar goll, ond dywedir mai wyth milltir o Gaernarfon ydoedd. Cysylltir yr enw gyda&amp;#039;r traddodiad fod Santes Gwenffrewi wedi anfon casul (sef dilledyn clerigol) i [[Sant Beuno]] bob blwyddyn, a&amp;#039;i fod wedi cyrraedd yn wyrthiol yn y borth dan sylw, a hynny heb iddo wlychu o gwbl. Mae hyn hefyd yn gyfrifol am enw amgen ar y lle, sef Porta Sachlen (sef Porth Sych-len). Mae&amp;#039;r Athro Patrick Sims-Williams yn awgrymu y gallai [[Porth Clynnog]] ger Aberdesach fod yn lleoliad posibl ar gyfer Porth y Casul.&lt;br /&gt;
&lt;br /&gt;
Enw mwy diweddar (sydd eto ar goll) yw Porth y Gaseg, ond mae&amp;#039;n debyg mai ymgais i wneud synnwyr o&amp;#039;r gair anghyfarwydd &amp;quot;casul&amp;quot; sydd yma.&amp;lt;ref&amp;gt;Patrick Sims-Williams, &amp;#039;&amp;#039;Buchedd Beuno. The Middle Welsh&amp;#039;&amp;#039; Life &amp;#039;&amp;#039;of St Beuno&amp;#039;&amp;#039; (Dulyn, 2018), tt.32, 64.&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Cyfeiriadau==&lt;br /&gt;
&lt;br /&gt;
[[Categori:Daearyddiaeth ffisegol]]&lt;br /&gt;
[[Categori:Harbyrau]]&lt;br /&gt;
[[Categori:Enwau lleoedd]]&lt;/div&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
</feed>