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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.
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References in periodicals archive ?
agreed a formal cooperation contract with CFGC concerning both the 3D MMORPG called "The War of the Red Cliff," which will be launched in the fourth quarter by Beijing Perfect World, and the cognominal film shot by reclaimed director John Woo.
Nowadays a profession-based patronym does not oblige its owner to continue in the cognominal business.
This new OB game content will more closely resemble the cognominal story, and let players enter into the real "Zhu Xian" fantasy world.