To give a cognomen or additional name to someone; to surname or nickname.
From Latin 'cognominatus,' past participle of 'cognominare,' derived from 'cognomen.' The verb form was created to describe the action of bestowing a cognomen.
Medieval and Renaissance writers occasionally used this verb when discussing the naming of heroes or the granting of titles, but it's so outdated that modern English simply uses 'nickname' instead.
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