Meaning

noun someone who is dazzlingly skilled in any field

noun a buzzing or hissing sound as of something traveling rapidly through the air

verb make a soft swishing sound

originOnomatopoeic. Compare huzz, hizz, hiss. In some noun senses perhaps derived from wizard. In the sense “remarkably skilled person”, it may also simply a misspelling of its shortened form wiz, or it may be a shortening of whiz kid, which may have a different origin, perhaps whiz(z) in the sense of “something very remarkable”, attested from 1908, or the interjection (as in whizz-bang or gee whiz).…

Etymology from Wiktionary, CC BY-SA 3.0