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n. pl. cog·no·mens or cog·nom·i·na (-nŏm′ə-nə)
a. A family name; a surname.
b. The third and usually last name of a citizen of ancient Rome, as Caesar in Gaius Julius Caesar.
2. A name, especially a descriptive nickname or epithet acquired through usage over a period of time.

[Latin cognōmen : co-, con-, co- (influenced by cognōscere, to know) + nōmen, name; see nō̆-men- in Indo-European roots.]

cog·nom′i·nal (-nŏm′ə-nəl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


n, pl -nomens or -nomina (-ˈnɒmɪnə; -ˈnəʊ-)
(Historical Terms) (originally) an ancient Roman's third name or nickname, which later became his family name. See also agnomen, nomen, praenomen
[C19: from Latin: additional name, from co- together + nōmen name; influenced in form by cognōscere to learn]
cognominal adj
cogˈnominally adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(kɒgˈnoʊ mən)

n., pl. -no•mens, -nom•i•na (-ˈnɒm ə nə)
1. any name, esp. a nickname or epithet.
2. the third and commonly the last name of a citizen of ancient Rome, indicating the person's house or family, as “Caesar” in “Gaius Julius Caesar.” Compare agnomen (def. 1).
3. a surname.
[1800–10; < Latin, =co- co- + nōmen name]
cog•nom′i•nal (-ˈnɒm ə nəl, -ˈnoʊ mə-) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


1. Ancient Rome. the third and usually last name in Roman personal names, as Caesar of Gaius Julius Caesar.
2. a surname or family name.
3. a nickname. — cognominal. adj.
See also: Names
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cognomen - a familiar name for a person (often a shortened version of a person's given name)cognomen - a familiar name for a person (often a shortened version of a person's given name); "Joe's mother would not use his nickname and always called him Joseph"; "Henry's nickname was Slim"
appellation, appellative, designation, denomination - identifying word or words by which someone or something is called and classified or distinguished from others
2.cognomen - the name used to identify the members of a family (as distinguished from each member's given name)
name - a language unit by which a person or thing is known; "his name really is George Washington"; "those are two names for the same thing"
maiden name - a woman's surname before marriage
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


The word or words by which one is called and identified:
Slang: handle, moniker.
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


[kɒgˈnəʊmen] N (frm) (cognomens or cognomina (pl)) (= surname) → apellido m; (= nickname) → apodo m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
References in classic literature ?
Sorrow and misfortune overtake the legislature that still from year to year permits Tahoe to retain its unmusical cognomen! Tahoe!
Hereafter a very notorious Roman Emperor will institute this worship in Rome, and thence derive a cognomen, Heliogabalus.
Both the name and the idea appealed to Number Thirteen and from that time he adopted Bulan as his rightful cognomen.
Under the temporary pressure of pecuniary liabilities, contracted with a view to their immediate liquidation, but remaining unliquidated through a combination of circumstances, I have been under the necessity of assuming a garb from which my natural instincts recoil - I allude to spectacles - and possessing myself of a cognomen, to which I can establish no legitimate pretensions.
The cognomen of Crane was not inapplicable to his person.
It permeates the political space where the cognomen 'Honourable' is used to describe public officials like Commissioners, local government officials and 'legislooters' masquerading as legislators.
Just as Madison, writing under a collective cognomen, theorized the extended republic, early novels worked to "link [the new nation's] countless dispersed and heterogeneous parts" (78).
The name cluster is possibly originating in a cognomen referring to the Isle of Muhu, where the settlers previously lived, and as such, serving as evidence of internal migration (see also Kallasmaa 1996 : 220).
There is a nomen gentile Albius (the poet Albius Tibullus) and a cognomen Albinus (several), but that's all.
40: While the spelling mntn' here may render the Latinate cognomen Montanus, the form mwnt'n' from Hr Guergour N 4 must render an African byform Muntanus.