Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
WILCOX
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
From Will, and cock, which signifies, little. Will's son, Williamson. "A willcock," one rather obstinate.
Patronymica Britannica (1860)
WILCOX. WILCOXON. See William.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English