verb (used with object)
verb (used without object)
Origin of frost
British Dictionary definitions for unfrost (1 of 2)
British Dictionary definitions for unfrost (2 of 2)
Word Origin for frost
Word Origin and History for unfrost (1 of 2)
Old English forst, frost "a freezing, becoming frozen, extreme cold," from Proto-Germanic *frusta- (cf. Old Saxon, Old Frisian, Old High German frost, Middle Dutch and Dutch vorst), related to freosan "to freeze," from PIE *preus- "to freeze; burn" (see freeze (v.)). Both forms of the word were common in English till late 15c.; the triumph of frost may be due to its similarity to the forms in other Germanic languages.