Sleet
Middle English: of Germanic origin; probably related to Middle Low German slōten (plural) ‘hail’ and German Schlosse ‘hailstone’.
wiktionary
From Middle English slete, probably from Old English slēte, *slȳte, *slīete, ultimately derived from or related to Proto-Germanic *slautô(“sleet”). Walter W. Skeat, the author of Etymological Dictionary of the English Language, suggests Old Norse slydda (whence Danish slud(“mixture of rain and snow”)). [1] The word appears to be akin to Low German Sloot(“hail”), dialectal German Schloße(“large hailstone”).
etymonline
sleet (n.)
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- (source also of dialectal Norwegian slutr, Danish slud, Swedish sloud "sleet"), from root *slaut-.
sleet (v.)
early 14c., from sleet (n.). Related: Sleeted; sleeting.
