Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Ancient Greek ἐπώνυμος
Ancient Greek ἐπί (affix)
Ancient Greek ὄνυμα (affix)
Ancient Greek -ος (affix)

English eponymous (derived)
Ancient Greek ἐπωνυμία (affix)