Welsh Prydain

← Proto-Brythonic *Pritanī (inherited)

← Proto-Brythonic *Pritenī (mention)

← Proto-Celtic *Kʷritanī (inherited)

← Proto-Celtic *Kʷritenī (mention)

← Welsh Prydyn (mention)

← Welsh Brython (mention)

← Irish Cruithne (cognate)

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

← Latin Brittānia (cognate)

← Latin Britto (mention)

← Old Irish Cruthin (cognate)

← Middle Welsh Prydein (inherited)

→ English Britain (cognate)

→ Breton Preden (cognate)

→ Welsh Prydael (blend)