Old Irish cét-

← Proto-Celtic *kentus (derived)

← Proto-Celtic *kanta (derived)

← Welsh gan (cognate)

← Ancient Greek κατά (cognate)

← Proto-Indo-European *ken- (derived)

← Proto-Indo-European *ḱóm (derived)

← Old Irish cétnae (mention)

→ Irish céad (inherited)

→ Scottish Gaelic ciad (inherited)

→ Middle Irish cét- (inherited)

→ Old Irish cétnae (mention)

→ Old Irish cetabí (affix)

→ Old Irish cétbaid (prefix)

→ Old Irish cétmuinter (affix)