Old Irish céile

← Proto-Celtic *kēlyos (inherited)

← Primitive Irish ᚉᚓᚂᚔ (inherited)

→ English ceilidh (derived)

→ English Kelleher (derived)

→ Irish céile (inherited)

→ Scottish Gaelic cèile (inherited)

→ Old Irish célide (suffix)

→ Old Irish céilsine (suffix)

→ Old Irish coicéile (prefix)

→ Old Irish coicéilsine (prefix)