Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old Irish Cóemgen
Proto-Celtic *koimos (derived)
Proto-Celtic *genan (derived)
Proto-Indo-European *ǵenh₁- (root)
Proto-Indo-European *ḱóymos (derived)
Proto-Indo-European *ǵenh₁- (derived)
Old Irish cóem (mention)
Old Irish gein (mention)

English Kevin (derived)
Cebuano Kevin (derived)
Irish Caoimhín (inherited)
Manx Keveen (inherited)