twirl (v.)youdaoicibaDictYouDict[twirl 词源字典]
1590s, "move round rapidly" (intransitive), of uncertain origin, possibly connected with Old English þwirl "a stirrer, handle of a churn," and Old Norse þvara "pot-sticker, stirrer." Or on another guess a blend of twist and whirl. Transitive sense, "cause to revolve rapidly," is from 1620s. Related: Twirled; twirling.[twirl etymology, twirl origin, 英语词源]
twirl (n.)youdaoicibaDictYouDict
1590s, "rapid circular motion," from twirl (v.).