agnomenn.

1651 R. Weldon Of Antichrist 18 They..had in lieu of Elohim the Agnomen of Meschiah, or the Lords Annoynted.

1654 E. Gayton Pleasant Notes Don Quixot iii. v. 99 It is usuall for Knights and Dons Errant to take appellative names from their successes, places of Birth, Conquest or Favour, as the Popes and great Emperours doe sometimes Prænomina, sometimes Agnomina, sometimes both.

1675 E. Sherburne in tr. M. Manilius Sphere Pref. sig. b^v A Greek Agnomen joyned to a Roman Name, is alwayes a most certain Token of a Servile Condition.

1753 Chambers's Cycl. Suppl. (at cited word) The generality of grammarians speak of the agnomen as a fourth name superadded to the cognomen or third name, on account of some extraordinary action, virtue, or the like: as Africanus in Publius Cornelius Scipio Africanus.

1785 G. Gregory Ess. Hist. & Moral vi. 120 Men..acquired names from some notable action or occurrence; such was the agnomen, and frequently the cognomen, of the Romans.

1809 M. Edgeworth Ennui vi, in Tales Fashionable Life I. 133 She was..wonderfully happy in the invention of agnomens.

1814 W. Scott Waverley I. xvii. 254 Small pale features, from which he derived his agnomen of Bean, or white. View more context for this quotation

1895 Jrnl. Cork Hist. & Archaeol. Soc. 337 These nicknames..resemble the agnomina of the later Roman period.

1922 C. L. Graves Mr. Punch's Hist. Mod. Eng. (N.Y. ed.) IV. ii. 318 The memorial verses to 'Druriolanus,' the ingenious agnomen of Punch's coining, render full justice to one who began as an indifferent melodramatic actor and ended as a successful impresario.

1967 M. Hammond & A. Amory Aeneas to Augustus (ed. 2) i. xii. 32 Publius Cornelius Scipio, given the honorary agnomen of Africanus after his conquest of Carthage in North Africa.., displayed in his career and character a mixture of traditionally Roman qualities and unconventional features.

2009 N.Y. Times (Nexis) 13 Dec. (Book Review section) 18 Volpi additionally insists on saddling cities and walk-on historical personages with weird, mock comic agnomens.