eponymous
Word family nouneponymadjectiveeponymiceponymous
e·pon·y·mous /ɪˈpɒnɪməs $ ɪˈpɑː-/ adjectiveadj [only before noun] ANAME OF A PERSONthe eponymous character in a book, film, or play is the character whose name is in its title 〔书、电影或戏剧中的角色〕与作品同名的 Hester, the book’s eponymous heroine 与本书同名的女主人公赫斯特
Origin eponymous (1800-1900) Greek eponymos, from epi- (EPICENTER) + onyma “name”