Etymology

eponymous

ep·o·nym·ous
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Today it means: Of, relating to, or being the person or entity after which someone or something is named; serving as an eponym. Full definition →

Ancient Greek ἐπώνῠμος
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The story

  1. Ancient Greek · derived fromἐπώνῠμος“concerning giving one’s name to something; named in a significant manner; surnamed”
  2. English todayeponymous

PIE word *h₁epi From Ancient Greek ἐπώνῠμος (epṓnŭmos, “concerning giving one’s name to something; named in a significant manner; surnamed”) + English -ous (suffix forming adjectives from nouns, denoting pertinence or relation). By surface analysis, epi- + -onymous.

Etymology from Wiktionary, CC BY-SA 4.0.