Vastum
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
L. Lat A waste or common lying open to the cattle of all tenants who have a right of commoning. Cowell.
— Vastum forestse vel hosci. In old records. Waste of a forest or wood. That part of a forest or wood wherein the trees and underwood were so destroyed that it lay in a manner waste and barren. Parochi Antiq. 351, 497; Cowell.