Definition of eponym noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈepənɪm//
; NAmE NAmE//ˈepənɪm//
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a person or thing, or the name of a person or thing, from which a place, an invention, a discovery, etc. gets its name Word Originmid 19th cent.: from Greek epōnumos ‘given as a name, giving one's name to someone or something’, from epi ‘upon’ + onoma ‘name’.
See the Oxford Advanced American Dictionary entry: eponym