Meaning

noun a headlong rush of people on a common impulse

noun a wild headlong rush of frightened animals (horses or cattle)

verb cause to run in panic

originThe noun is derived from Mexican Spanish estampida (“a stampede”), from Spanish estampida, estampido (“a bang, a crack (sound)”), from Old Occitan estampida, from Gothic *𐍃𐍄𐌰𐌼𐍀𐌾𐌰𐌽 (*stampjan), from Proto-Germanic *stampōną (“to compress, squeeze; to stamp”), from Proto-Indo-European *stembʰ- (“to trample down”). The verb is derived from the noun.

Etymology from Wiktionary, CC BY-SA 3.0