Agnomen

Webster's Dictionary of the English Language

·noun An additional name, or an epithet appended to a name; as, Aristides the Just.

II. Agnomen ·noun An additional or fourth name given by the Romans, on account of some remarkable exploit or event; as, Publius Caius Scipio Africanus.

Related Words

agnomen
a-gnōmen (adn-), ĭnis, n. [gnomen, nomen], a surname (this word seems to have been first employed...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.