פֿראָסט
דער
'frost'

ETYMOLOGY

[Interesting that in Yiddish you say אַ פֿראָסט ברענט 'a frost is burning' - a Slavic idiom: Polish mróz pali, Ukrainian пече мороз]
ON frost, OE forst, English frost, OS frost, Dutch vorst, OHG frost, MHG vrost, NHG Frost; from PGmc ✱frusta- < ✱prus-to- (DRV), derived from ✱freusan- (see פֿרירן).

frɔst, vus-mɛ-i giɛfrɔjrn giɛvɔrn פֿראָסט וואָס מע איז געפֿרוירן געוואָרן {Warsaw, Geller 2001: 313}