eponym
/ˈɛpənɪm/
noun
- A person or thing from which something else gets its name.
- The disease takes its eponym from the doctor who first described it.
- The company's eponym was its founder, John Deere.
- The sandwich is named after its eponym, the Earl of Sandwich.
- A word that comes from the name of a person or place.
- The word "diesel" is an eponym for the inventor Rudolf Diesel.
- Many medical terms are eponyms, like "Alzheimer's" from Dr. Alzheimer.
- "Sandwich" is an eponym because it comes from a person's name.