Etymology Explorer › English

Where does “reaction” come from?

reaction (English) comes from Middle English reaccion, from Old French reaction, from Latin reactio, from Latin reago, from Latin rĕ-, from Latin prōdūcō, from Latin prō-, from Proto-Italic *pro- — passed , crossed.

reaction (English): Rare spelling of reaction

Definitions

  1. Rare spelling of reaction

Ancestry of “reaction”, step by step

StepLanguageWordMeaning
1Middle Englishreaccion—
2Old Frenchreaction—
3Latinreactioreaction
4LatinreagoI act upon again, I do again; I react
5Latinrĕ-—
6Latinprōdūcō—
7Latinprō-—
8Proto-Italic*pro-—
9Proto-Indo-Europeanpro-toward, forward
10Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
11Proto-Indo-Europeanper-before, in front; first; to go through
12Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tós →