Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
WARR
As described in historical dictionaries
Patronymica Britannica (1860)
WARR. WARRE. War appears to be an obsolete topographical word, of uncertain meaning. It was formerly prefixed by the particles De la, as in the ancient family De la AVarr, whose heiress married, in the XV. cent., West, the lineal ancestor of the Earl De la Warr.
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English