per-vasto

āvi, ātum, 1, v. a.
I. to lay waste, devastate: fines, Liv. 6, 4: pervastatis passim agris, id. 8, 19: pervastata Italia, Tac. A. 15, 45: Boii Laevos cum pervastassent, Liv. 33, 37, 6.
Lewis & Short
A Latin Dictionary, 1879
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