Cock, little--a term of endearment, a diminutive, the same as ot or kin, used as a termination, as Willcox, little Will; Simcox, little Sim, etc. The word is also often used to denote a leader or chief man. Addison says: "Sir Andrew is the cock of the club."

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

COX. COXE. See Eng. Surn. under Cock, i. 165. Probably a sjaionym of Little. It may, however, be the same as Cook, from its latinized form, thus : Cocus, Cocks, Cox.

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