Webster's Revised Unabridged Dictionary · 1913

maraud

maraud , intransitive verb

[French marauder, from maraud vagabond, Old French marault; of uncertain origin, perh. for malault, from (assumed) Late Latin malaldus; from Latin malus bad, ill + a suffix of German origin (compare Herald). Compare Malice.]

To rove in quest of plunder; to make an excursion for booty; to plunder.
Marauding hosts. — Milman

Maraud , noun

An excursion for plundering.