Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Old Irish doíni
← Proto-Celtic *dowinis (inherited)
← Proto-Indo-European *dʰew- (root)
← Proto-Indo-European *dʰew- (derived)
← Old Irish duine (mention)

→ Old Irish duine (mention)
→ Old Irish dóenacht (affix)