Where does “impulseless” come from?

impulseless (English) comes from English impulse, from Middle French impulser, from Latin impulsus, from Latin impellō, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en — in.

impulseless (English): Devoid of impulses

Definitions

  1. Devoid of impulses

Ancestry of “impulseless”, step by step

impulseless traces back through two separate lines of ancestry.

via English impulse

StepLanguageWordMeaning
1EnglishimpulseA thrust; a push; a sudden force that impels; A...
2Middle Frenchimpulser
3Latinimpulsuspushed, driven, assailed, having been pushed or...
4Latinimpellōto push, drive or strike against something; assail
5Latinīn-un-, non-, not
6Latinînin, at, on, upon, from (space)
7Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
8Proto-Italicenin
9Proto-Indo-Europeanh₁énin

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 h₁én