Where does “impactless” come from?

impactless (English) comes from English impact, from Latin impāctus, from Latin impingo, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

impactless (English): Without impact

Definitions

  1. Without impact

Ancestry of “impactless”, step by step

impactless traces back through two separate lines of ancestry.

via English impact

StepLanguageWordMeaning
1EnglishimpactThe striking of one body against another;...
2Latinimpāctusillision, collision, hit
3LatinimpingoI push, strike, dash against; I press upon, force...
4Latinīn-un-, non-, not
5Latinînin, at, on, upon, from (space)
6Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
7Proto-Italicenin
8Proto-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

Words derived from “impactless

Every word from Proto-Indo-European h₁énEvery word from Latin īn-Every word from Proto-Italic en