praevastare

praevastare [CL prae-+vastare] , to destroy or lay waste beforehand or in advance. quod pontes et calceta rumpuntur per hostes, et quod Franci ~ant victualia Elmh. Metr. Hen. V tit.p. 86; pontes, calceta rumpuntur ubique per hostes, / ‥ / victus adest regi vix sumptibus octo dierum, / Franci prevastant predia, vina, dapes Ib. 406.