early 14c. (late 13c. as Anglo-Latin foragium), from Old French forrage "fodder, foraging, pillaging, looting" (12c., Modern French fourrage), from fuerre "hay, straw, forage, fodder" (Modern French feurre) "fodder, straw," from Frankish *fodr "food" or a similar Germanic source (cf. Old High German fuotar, Old English fodor); see fodder). Military forage cap attested by 1827.