Where does “mothless” come from?

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

mothless (English): Free from moths

Definitions

  1. Free from moths

Ancestry of “mothless”, step by step

mothless 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 moth

StepLanguageWordMeaning
1EnglishmothA usually nocturnal insect of the order...
2Hindiमोठmat, mot
Every word from Proto-Germanic *laus