Welsh caseg

← Proto-Celtic (inherited)

← Proto-Celtic *kengeti (cognate)

← Persian خنگ (cognate)

← Proto-Indo-European *ḱonḱ- (derived)

← Proto-Indo-European *ḱonk- (mention)

← Lithuanian šankùs (cognate)

← Dutch hengst (cognate)

→ Gaulish cassica (cognate)