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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.


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


(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.


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
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


The word or words by which one is called and identified:
Slang: handle, moniker.


[kɒgˈnəʊmen] N (frm) (cognomens or cognomina (pl)) (= surname) → apellido m; (= nickname) → apodo m
References in periodicals archive ?
Antonius Creticus and the cognomina ex victis gentibus', ZPE 80 (1990) 157-64.
We publish the Top One Hundred list in the various categories to honour those contrary individuals and their contrary cognomina.
Three of the four names that follow are diminutives of Roman aristocratic male cognomina, like Drusilla, and perhaps might be translated "Muffy and Buffy and Dixie and Trixie and Pixie.