Where does “flareless” come from?

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

flareless (English): Without a flare

Definitions

  1. Without a flare

Ancestry of “flareless”, step by step

flareless 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 flare

StepLanguageWordMeaning
1EnglishflareA sudden bright light; A source of brightly...
Every word from Proto-Germanic *lausEvery word from Old English lēasEvery word from Middle English les
flareless — Etymology, Origin & Word History | Etymology Explorer