Welsh gloyw

← Proto-Brythonic *gluɨw (inherited)

← Proto-Celtic *glēwos (inherited)

← Proto-Indo-European *ǵʰley- (inherited)

← Old Breton gloeu (cognate)

← Old Irish glé (cognate)

→ Welsh Gloyw (mention)

→ Welsh Gloyw (mention)

→ Welsh tryloyw (affix)

→ Welsh Caerloyw (affix)

→ Welsh nosloyw (compound)