-iaethau

-iaeth +‎ -au

• (North Wales, standard) IPA^(key): /ˈjeɨ̯θaɨ̯/
  • (North Wales, colloquial) IPA^(key): /ˈjeɨ̯θɛ/, /ˈjeɨ̯θa/
• (South Wales, standard) IPA^(key): /ˈjei̯θai̯/
  • (South Wales, colloquial) IPA^(key): /ˈjei̯θɛ/

-iaethau

1. plural of -iaeth