Breton deviñ

← Proto-Celtic *dawyeti (inherited)

← Welsh deifio (cognate)

← Ancient Greek δαίω (cognate)

← Proto-Indo-European *deh₂w- (inherited)

← Cornish dewi (cognate)

← Middle Breton deuiff (inherited)

← Tocharian A twās (cognate)

→ Welsh deifio (cognate)

→ Irish dóigh (cognate)

→ Italian debbio (cognate)

→ Cornish dewi (cognate)