An Etymological Dictionary of the German Language/Schwarm

by Friedrich Kluge

Schwarm, m., ‘swarm, cluster, throng,’ from MidHG. swarm, OHG. swaram, m., ‘swarm (of bees)’; allied to the Sans. root svar, ‘to rustle, resound.’ Comp. AS. swearm, ‘swarm (of bees),’ E. swarm, OIc. svarmr. See schwirren.