Webster's Revised Unabridged Dictionary · 1913

Depredate

Depredate , transitive verb

[Latin depraedatus, past participle of depraedari to plunder; de- + praedari to plunder, praeda plunder, prey. See Prey.]

To subject to plunder and pillage; to despoil; to lay waste; to prey upon.
It makes the substance of the body... less apt to be consumed and depredated by the spirits. — Bacon

Depredate , intransitive verb

To take plunder or prey; to commit waste; as, the troops depredated on the country.