Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English eponymous
English -onym (affix)
Ancient Greek ἐπώνυμος (derived)
Ancient Greek ἐπί (affix)
Ancient Greek ὄνυμα (affix)
Ancient Greek ὄνομα (mention)

English eponym (back-formation)
English eponymously (suffix)
English merry widow (link)
Dutch eponiem (borrowed)