Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Breton Karnag
Proto-Celtic *Cerno-on-os (derived)
Proto-Celtic *ḱr̥h₂-nó-s (mention)
Proto-Celtic *karnos (mention)
Welsh carn (cognate)
Proto-Indo-European *ḱerh₂- (derived)

English Carnac (derived)