Where does “unfrosted” come from?

unfrosted (English) comes from English frosted, from English Frost, from Middle English frost, from Old English frost, from Proto-Indo-European prustós — frost.

unfrosted (English): Not frosted

Definitions

  1. Not frosted

Ancestry of “unfrosted”, step by step

unfrosted traces back through two separate lines of ancestry.

via English frosted

StepLanguageWordMeaning
1EnglishfrostedCovered in frost; frosty; Appearing to be covered...
2EnglishFrostA cover of minute ice crystals on objects that are exposed to the air. Frost is formed by the same process as dew, except that the temperature of the frosted object is below freezing
3Middle EnglishfrostCold, freezing, or frosty weather; weather that...
4Old Englishfrostproduced by metathesis
5Proto-Indo-Europeanprustósfrost

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European prustósEvery word from Old English frostEvery word from Middle English frost
unfrosted — Etymology, Origin & Word History | Etymology Explorer