Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
FARQUHAR
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Gaelic.) From Fear, a man, and còir, just, honest, good, or car, friendly; Fearciar, from Fear and ciar, dark-gray--a dark-gray man.
Patronymica Britannica (1860)
FARQUHAR. A common Scottish surname — the same as the Irish Ferchard, an ancient personal name in both countries. The London Farquhars spring from Aberdeenshire.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
Origin: Celtic
Region of origin: British Isles
Country of origin: Scotland
Religion of origin: Christian
Language of origin: Gaelic