rare. [ad. late L. vallātio, f. L. vallāre (see VALLATE a.), f. vallum rampart.] A ridge, wall or bank of earth thrown up as a defence or protection; an earthwork or fortification of this nature.
1664. Evelyn, Sylva, 112. Two hedges, with their Vallations and Trenches, will be requisite in all the Round; viz. one next to the Enclosure, the other about the thicket, to fence it from Cattle.
1781. Warton, Hist. Kiddington, 70. The vallation … called Dyke-Hills, consisting of two ridges or borders with an intermediate trench,… is not Roman.
1799. R. Warner, Walk (1800), 12. He may … please his fancy with discriminating between the vallations of the Celtic aborigenes, and the huge mounds of their Saxon invaders.
