Barrage

google

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mid 19th century (in barrage (sense 2 of the noun)): from French, from barrer ‘to bar’, of unknown origin.

wiktionary

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Borrowed from French barrage(“barrage, barrier”). Compare barrier.

etymonline

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barrage (n.)

1859, "action of barring; man-made barrier in a stream" (for irrigation, etc.), from French barrer "to stop," from barre "bar," from Old French barre (see bar (n.1)). Artillery sense is 1916, from World War I French phrase tir de barrage "barrier fire" intended to isolate the objective. As a verb by 1917. Related: Barraged; barraging.