A familiar name for a person (often a shortened version of a person's given name). Synonyms:byname, cognomen, moniker, nickname, sobriquet."Henry's nickname was Slim"
... Sir Charles Napier known to history as the "hero of Saint Jean d'Acre," but better known to sailors in the British navy as "Old Sharpen Your Cutlasses!" This quaint soubriquet he obtained from an order issued by him when he commanded a fleet in the Baltic, anticipating an ... — The Land of Fire - A Tale of Adventure • Mayne Reid