D defs.my
Entry 1 sense Webster, 1913

Eponymous

/ĕp-ôn'-ĭmˌ-əs/ · E·pon·y·mous · IPA /əˈpɑnəməs/
01 a. Relating to an eponym; giving one's name to a tribe, people, country, and the like.
  1. 1.
    Relating to an eponym; giving one's name to a tribe, people, country, and the like.
    “What becomes . . . of the Herakleid genealogy of the Spartan kings, when it is admitted that eponymous persons are to be canceled as fictions?” — Grote.