Where does “spamless” come from?

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

spamless (English): Without spam

Definitions

  1. Without spam

Ancestry of “spamless”, step by step

spamless 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 spam

StepLanguageWordMeaning
1EnglishspamUnsolicited bulk electronic messages; Any...
Every word from Proto-Germanic *laus
spamless — Etymology, Origin & Word History | Etymology Explorer