eponymous Definition

eponym
noun

1. The name of a person after whom something is named, especially the main character in a play or novel, etc whose name provides its title.
2. A name derived from a person's name, eg Hamlet, Gettysburg.

Derivative: eponymous
adj

Said of a character in a story, etc: having the name which is used as the title.

Etymology: 19c: from Greek onyma a name.