542
golygiad
| '''g''' → '''gh'''
|-
| rowspan="2" | '''g''' gron
| {{IPA|/g/}}
| style="background-color:#D3D3D3;" colspan=4 rowspan=2|
| {{IPA|/g/}} → {{IPA|/w/}}
| style="background-color:#D3D3D3;" rowspan=2|
|-
| ''Sillafiad''
| {{IPA|/g/}}
| style="background-color:#D3D3D3;" colspan=4 rowspan=2|
| {{IPA|/g/}} → ''dim''
| style="background-color:#D3D3D3;" rowspan=2|
|-
| ''Sillafiad'' || '''g''' → ''dim''
|-
| rowspan="2" | '''g'''
| {{IPA|/g/}}
| style="background-color:#D3D3D3;" colspan=3 rowspan=2|
| {{IPA|/g/}} → ''dim''
| style="background-color:#D3D3D3;"|
| {{IPA|/g/}} → {{IPA|/x/}}
|-
| ''Sillafiad''
| '''g''' → ''dim
| style="background-color:#D3D3D3;"|
| '''g''' → '''c'h'''
|-
| rowspan="2" | '''gw''' || {{IPA|/gw/}}
| style="background-color:#D3D3D3;" colspan=3 rowspan=2|
| {{IPA|/gw/}} → {{IPA|/w/}}
| {{IPA|/gw/}} → {{IPA|/w/}}
| {{IPA|/gʷ/}} → {{IPA|/w/}}
|-
| ''Sillafiad''
| '''gw''' → '''w'''
| '''gw''' → '''w'''
| '''gw''' → '''w'''
|-
| rowspan="2" | '''m''' fain
| {{IPA|/mʲ/}} | {{IPA|/m/}} → {{IPA|/v/}}
| {{IPA|/mj/}} → {{IPA|/vj/}}
| {{IPA|/bʲ/}} → {{IPA|/vʲ/}}
| style="background-color:#D3D3D3;" colspan=3 rowspan=2|
|-
| ''Sillafiad''
| '''m''' → '''v
| '''m''' → '''mh'''
| '''m''' → '''mh'''
|-
| rowspan="2" | '''m''' lydan
| {{IPA|/mˠ/}}
| {{IPA|/mw/}}, {{IPA|/m/}} → {{IPA|/w/}}
| {{IPA|/m/}} → {{IPA|/v/}}
| {{IPA|/mˠ/}} → {{IPA|/w/}}
| style="background-color:#D3D3D3;" colspan=3 rowspan=2|
|-
| ''Sillafiad''
| '''mw''', '''m''' → '''w'''
| '''m''' → '''mh'''
| '''m''' → '''mh'''
|-
| rowspan="2" | '''m'''
| {{IPA|/m/}}
| style="background-color:#D3D3D3;" colspan=3 rowspan=2|
| {{IPA|/m/}} → {{IPA|/v/}}
|-
| ''Sillafiad''
|'''m''' → '''f'''
| '''m''' → '''v'''
| '''m''' → '''v'''
|-
| rowspan="2" | '''f''' fain
|
golygiad