Welsh cu

← Breton kuñv (cognate)

← Proto-Brythonic *kʉβ̃ (inherited)

← Proto-Celtic *koimos (inherited)

← English home (cognate)

← Proto-Indo-European *ḱóymos (inherited)

← Lithuanian káimas (cognate)

← Sanskrit क्षेम (cognate)

← Old Irish cóem (cognate)

← Middle Welsh ku (inherited)

→ Breton kuñv (cognate)

→ Welsh mam-gu (compound)

→ Old Irish cóem (cognate)