Where does “reagentless” come from?

reagentless (English) comes from English reagent, from Latin reago, from Latin rĕ-, from Latin prōdūcō, from Latin prō-, from Proto-Italic *pro-, from Proto-Indo-European pro-, from Proto-Indo-European por- — passed , crossed.

reagentless (English): That does not use a reagent

Definitions

  1. That does not use a reagent

Ancestry of “reagentless”, step by step

reagentless traces back through two separate lines of ancestry.

via English reagent

StepLanguageWordMeaning
1EnglishreagentA compound or mixture of compounds used to treat...
2LatinreagoI act upon again, I do again; I react
3Latinrĕ-back, backwards
4Latinprōdūcōto lead or bring forth, forward or out
5Latinprō-forward direction, forward movement
6Proto-Italic*pro-pro- see the Latin entry for further meanings
7Proto-Indo-Europeanpro-toward, forward
8Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
9Proto-Indo-Europeanper-before, in front; first; to go through
10Proto-Indo-Europeanpr̥tóspassed , crossed

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 pr̥tósEvery word from Proto-Indo-European per-Every word from Latin rĕ-