Where does “frostless” come from?

frostless (English) comes from English less, from Middle English les, from Old English lēas, from Proto-Germanic *laus.

frostless (English): Without frost

Definitions

  1. Without frost

Ancestry of “frostless”, step by step

frostless traces back through two separate lines of ancestry.

via English less

StepLanguageWordMeaning
1EnglishlessTo a smaller extent or degree; comparative form...
2Middle Englishlesfalse; lying; deceptive; falsehood; a lie
3Old Englishlēasfalse, lax; false, void, loose; devoid of, loose...
4Proto-Germanic*laus

via English Frost

StepLanguageWordMeaning
1EnglishFrostA 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
2Middle EnglishfrostCold, freezing, or frosty weather; weather that...
3Old Englishfrostproduced by metathesis
4Proto-Indo-Europeanprustósfrost

Words derived from “frostless

Every word from Proto-Germanic *laus