Where does “unfrosty” come from?

unfrosty (English) comes from English frosty, from Middle English frosty, from Old English forstiġ — frosty.

unfrosty (English): Not frosty

Definitions

  1. Not frosty

Ancestry of “unfrosty”, step by step

unfrosty traces back through two separate lines of ancestry.

via English frosty

StepLanguageWordMeaning
1EnglishfrostyCold, chilly; Having frost on it; Having an aloof...
2Middle EnglishfrostyCold, freezing, frosty; being or experiencing...
3Old Englishforstiġfrosty

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Old English forstiġ →Every word from Middle English frosty →Every word from English frosty →