Where does “soothless” come from?

soothless (English) comes from English sooth, from Middle English sooth, from Old English sōþ, from Proto-West Germanic sanþ, from Proto-Germanic sanþaz, from Proto-Indo-European h₁sónts, from Proto-Indo-European h₁ēs- — to be.

soothless (English): Devoid of truth; false; lying

Definitions

  1. Devoid of truth; false; lying

Ancestry of “soothless”, step by step

soothless traces back through two separate lines of ancestry.

via English sooth

StepLanguageWordMeaning
1EnglishsoothTruth; Augury; prognostication; Blandishment;...
2Middle Englishsooth
3Old Englishsōþtrue, sooth; truth; true, actual, real
4Proto-West Germanicsanþtrue; truth
5Proto-Germanicsanþaztrue, real
6Proto-Indo-Europeanh₁sóntsactive participle of *h₁ésti; being, existence;...
7Proto-Indo-Europeanh₁ēs-to be

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
Every word from Proto-Indo-European h₁ēs-Every word from Proto-Indo-European h₁sóntsEvery word from Proto-Germanic sanþaz