Irish cúng

← Proto-Celtic *komingus (inherited)

← Welsh cyfyng (cognate)

← Proto-Indo-European *h₂enǵʰ- (root)

← Proto-Indo-European *ḱóm (inherited)

← Proto-Indo-European *h₂énǵʰus (mention)

← Old Irish cumung (inherited)

→ Russian узкий (cognate)