- a person, real or imaginary, from whom something, as a tribe, nation, or place, takes or is said to take its name: Brut, the supposed grandson of Aeneas, is the eponym of the Britons.
- a word based on or derived from a person's name.
- any ancient official whose name was used to designate his year of office.
Origin of eponym
First recorded in 1840–50; back formation from eponymous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a name, esp a place name, derived from the name of a real or mythical person, as for example Constantinople from Constantine I
- the name of the person from which such a name is derivedin the Middle Ages, "Brutus" was thought to be the eponym of "Britain"
C19: from Greek epōnumos giving a significant name
Word Origin and History for eponymic
Online Etymology Dictionary, © 2010 Douglas Harper
- A name of a drug, structure, or disease based on or derived from the name of a person.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.