Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Old Armenian քուն
Proto-Indo-European *swep- (root)
Proto-Indo-European *swópno- (inherited)
Proto-Indo-European *swep- (mention)

Armenian քուն (inherited)
Old Armenian քունք (suffix)
Old Armenian քունեմ (mention)