1
: being the person or thing for whom or which something specified is named : of, relating to, or being an eponym
the eponymous owner of the bookstore
The epic poem's eponymous hero, then an aging warrior, stepped in.—Sonja Anderson
2
: named for a particular person or thing
the band's eponymous album [=the album titled with the band's name]
an eponymous brand/label
[Simone] Biles performed a vault that was worth eight-tenths of a point less than her eponymous double-flipping skill.—Thuc Nhi Nguyen

Did you know?

What’s in a name? If the name is eponymous, a name is in the name: an eponymous brand, café, river, or ice cream is named for someone or something. And because English is beastly sometimes, the one lending the name to the brand, café, river, or ice cream can also be described as eponymous. This means that if Noah Webster owns a bookstore called “Webster’s Books,” it’s an eponymous bookstore, and Noah himself is the bookstore’s eponymous owner. Most of the time, though, we see eponymous describing a thing named for a person—for example, an eponymous brand named for a designer, or a band’s eponymous album titled only with the band’s name. The related word eponym is less ambiguous: it refers to the one for whom someone or something is named. At our hypothetical “Webster’s Books,” Noah Webster is the bookstore’s eponym. Appropriately enough, the Greek root of both words is onyma, meaning “name.”

Examples of eponymous in a Sentence

… Ramayana, an Indian epic which chronicles, in sixty thousand verses, the adventures of its eponymous hero Rama … —Leila Hadley, Give Me the World, (1958) 1999
"Cool Britannia," which goes back to Ben and Jerry's eponymous ice cream in Spring 1996, met its sell-by-date within weeks … —Harold Perkin, Times Literary Supplement, 18 Dec. 1998
Karen Hubert Allison, the eponymous (if you count middle names) creator of Hubert's, didn't know she was making dining history … —Peter Kaminsky, New York Times Book Review, 11 May 1997
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Gaspar founded an eponymous insurance company in the Valley in 2008, selling it in 2021. — Melissa Gomez, Los Angeles Times, 4 Nov. 2026 Ugo Monye, the founder of his eponymous label, returned after a year-long break. — Ezreen Benissan, Vogue, 3 Nov. 2026 Each of the birthday edition Huayras is stunning in its own way, but photos of the latest entry suggest the designer’s eponymous marque saved the best for last. — Bryan Hood, Robb Report, 2 Nov. 2026 Eric Weingartner, whose eponymous company Weingartner Racing specializes in cylinder heads, recently took a look at a set of Vortec-style heads purchased off Temu. — Stephen Edelstein, The Drive, 31 Oct. 2026 See All Example Sentences for eponymous

Word History

Etymology

Greek epṓnymos "bearing a name derived from an existing name" + -ous — more at eponym

First Known Use

1846, in the meaning defined at sense 1

Time Traveler
The first known use of eponymous was in 1846

Browse Nearby Words

Podcast

Cite this Entry

“Eponymous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eponymous. Accessed 7 Nov. 2026.

Medical Definition

eponymous

adjective
: of, relating to, or named after an eponym
those eponymous genetic conditions … such as … Friedreich's ataxia—R. O. Brady
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster