Nepos play biographical name Ne·pos \ˈnē-ˌpäs, ˈne-\ Definition of Nepos Cornelius ca 100–ca 25 b.c. Rom. hist. See words that rhyme with Nepos Writing? Check your grammar now! Seen and Heard What made you want to look up Nepos? Please tell us where you read or heard it (including the quote, if possible).