Irish cú

← Proto-Celtic *kū (inherited)

← Welsh ci (cognate)

← Proto-Indo-European *ḱwṓ (inherited)

← Old Irish cú (inherited)

→ English Cúchulainn (mention)

→ English Cú Roí (mention)

→ English Cooney (mention)

→ English Coyne (mention)

→ English Queenan (mention)

→ English McNamee (cognate)

→ English McNiff (mention)

→ English McAdoo (mention)

→ English McGonagle (mention)

→ English McEnroe (mention)

→ Irish cuán (affix)

→ Irish dobharchú (affix)

→ Irish faolchú (affix)

→ Irish broc-chú (affix)

→ Irish conúil (suffix)

→ Latvian suns (cognate)

→ Russian сука (cognate)

→ Old Irish cúan (mention)