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.
The movie in question is Moana, starring newcomer Catherine Laga’aia as the eponymous Polynesian teenager who joins demigod Maui, played by Dwayne ‘The Rock’ Johnson, on a seafaring adventure to restore prosperity to her people. Caroline Reid, Forbes.com, 10 July 2026 Nikita Kadan’s charcoal Universal Ruins (Kyiv) & Universal Ruins (Gaza) (2024) hauntingly evokes the damage to these eponymous landscapes. Ara H. Merjian, ARTnews.com, 10 July 2026 Sweet teeth practically chattering, the newcomers ended their night with the bar’s eponymous sundae, a gourmet Madagascan-vanilla ice cream topped with rose-water syrup and cashews. Marina Harss, New Yorker, 10 July 2026 The original Little House series quickly moved past the events of the eponymous book, in which the family briefly settles in Kansas, on tribal land known as the Osage Diminished Reserve, situating the Ingallses more permanently in Minnesota. Judy Berman, Time, 9 July 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

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Cite this Entry

“Eponymous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eponymous. Accessed 16 Jul. 2026.

Medical Definition

eponymous

adjective
: of, relating to, or named after an eponym
those eponymous genetic conditions … such as … Friedreich's ataxiaR. O. Brady
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