CADOGAN

(origin: Welsh.) Terrible in battle; from cad, battle, and gwg, fierce.

Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.

CADOGAN. Earl Cadogan's family deduce from the princes of Powys in \Vales, some of whom bore the baptismal name of Cadwgan or Kydwgan, which, by the suj)pressiou of the patron}Tnical a, became an hereditary surname.

Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.