sleet (n.)youdaoicibaDictYouDict[sleet 词源字典]
c. 1300, slete, either from an unrecorded Old English *slete, *slyte, related to Middle High German sloz, Middle Low German sloten (plural) "hail," from Proto-Germanic *slautjan- (cognates: dialectal Norwegian slutr, Danish slud, Swedish sloud "sleet"), from root *slaut-.[sleet etymology, sleet origin, 英语词源]
sleet (v.)youdaoicibaDictYouDict
early 14c., from sleet (n.). Related: Sleeted; sleeting.