Mausolus (died 353/352 BCE) was a Persian satrap (governor), though virtually an independent ruler, of Caria, in southwestern Anatolia, from 377/376 to 353 BCE. He is best known from the name of his monumental tomb, the so-called Mausoleum—considered one of the Seven Wonders of the World—a word now used to designate any large and imposing burial structure.
Is there a name for this phenomenon? Like how “algorithm” is just the westernized spelling of of al-Khwarizmi or “guy” comes from Guy Fawkes.
It seems like the word is eponym and eponymous is the adjective derived from eponym. So from that I think “eponymous noun” and “epynom” would thus mean the same thing.
“An eponym is a noun after which or for which someone or something is named. Adjectives derived from the word eponym include eponymous and eponymic.” https://en.wikipedia.org/wiki/Eponym