Entry: cognomen (n.)
In context: "He [Stice -- JM] makes the companies that give him clothes and gear give him all black clothes and gear, and his E.T.A. cognomen is 'The Darkness.'"
Definition: Hence, in English use: a distinguishing name or epithet given to a person or assumed by himself; a nickname.
In Latin use: (a) The third name, family name, or surname of a Roman citizen, as Marcus Tullius Cicero, Caius Julius Cæsar; (b) an additional name or epithet bestowed on individuals, as Africanus, Cunctator (in later Latin called agnomen).
Other: Cool word! I'm a big hockey fan, but I think hockey cognomen are among the worst. You're Smith? Smithy. You're Jones? Jonesy. Winnipeg Jets goalies Ondrej Pavelec? Pavvy.
SNOOT score: 3
Source: Oxford English Dictionary