Proto-Indo-European *kerd-

→ Welsh cerdded (inherited)

→ Irish ceird (mention)

→ Irish ceardaí (mention)

→ Scottish Gaelic ceàird (mention)

→ Ancient Greek κέρδος (derived)

→ Manx keird (derived)

→ Manx keirdagh (derived)

→ Manx keirdaght (derived)

→ Sanskrit छर्दति (inherited)

→ Old Irish cerd (derived)

→ Old Irish foceird (derived)