UrsprungFrom Old Swedish sværmber, from Old Norse svarmr (“swarm”), from Proto-Germanic *swarmaz, from Proto-Indo-European *swer- (“to buzz, hum”).
Formersvärm(indefinite, nominative, singular) · svärms(genitive, indefinite, singular) · svärmen(definite, nominative, singular) · svärmens(definite, genitive, singular) · svärmar(indefinite, nominative, plural) · svärmars(genitive, indefinite, plural) · svärmarna(definite, nominative, plural) · svärmarnas(definite, genitive, plural)