Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
AGNEW
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Nor. Fr. Local) From the town of Agneau in Normandy, whence the family originated. They went from England into Ireland with Strongbow. Agneau, in Nor. Fr. signifies a lamb.
Patronymica Britannica (1860)
AGNEW. Possibly from the French arjneav, a lamb ; but more likely from Agneaux, a village in the arrondisseraent of St. Lo, in Normandy. Co. Wigton, XIV. cent.
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