Meaning

noun a moving crowd

noun a group of many things in the air or on the ground

verb be teeming, be abuzz

originFrom Middle English swarm, from Old English swearm (“swarm, multitude”), from Proto-West Germanic *swarm, from Proto-Germanic *swarmaz (“swarm, dizziness”), from Proto-Indo-European *swer- (“to buzz, hum”). Cognate with Saterland Frisian Swoorm (“swarm”), Dutch zwerm, German Schwarm, Danish sværm, Swedish svärm, Icelandic svarmur (“tumult, swarm”), Latin susurrus (“whispering, humming”),…

Etymology from Wiktionary, CC BY-SA 3.0