(A) Of, relating to, or designating a North or South American (or Americans) of European origin or descent; specifically white American. (b) Of, relating to, or designating both North America and western Europe; western.
A native or inhabitant of either North America or western Europe; a westerner. Also: an American of European origin or descent; specifically a white American.
Mid 19th century; earliest use found in Anthropological Review. From Euro- + American.