Old Irish cumung

← Proto-Celtic *komangus (inherited)

← Welsh cyfyng (cognate)

← Proto-Indo-European *h₂enǵʰ- (root)

← Proto-Indo-European *ḱóm (inherited)

← Proto-Indo-European *h₂enǵʰ- (mention)

→ Welsh cyfyng (cognate)

→ Irish cúng (inherited)

→ Scottish Gaelic cumhang (inherited)