nounWord forms: plural cogˈnomens or cogˈnomina (kɑgˈnɑmɪnə
1. the third or family name of an ancient Roman (Ex.: Marcus Tullius Cicero)
3. any name; esp., a nickname
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'cognomen'
L < co-
, with + nomen, name
: sp. infl. by assoc. with *gnomen
< Gr gnōma,
mark, token: akin to L gnoscere, know