Where does “Immunreaktion” come from?

Immunreaktion (German) comes from German Reaktion, from Latin reactio, from Latin reago, from Latin rĕ-, from Latin prōdūcō, from Latin prō-, from Proto-Italic *pro-, from Proto-Indo-European pro- — passed , crossed.

Immunreaktion (German): immune reaction

Definitions

  1. immune reaction

Ancestry of “Immunreaktion”, step by step

Immunreaktion traces back through two separate lines of ancestry.

via German Reaktion

StepLanguageWordMeaning
1GermanReaktionresponse; reaction
2Latinreactioreaction
3LatinreagoI act upon again, I do again; I react
4Latinrĕ-back, backwards
5Latinprōdūcōto lead or bring forth, forward or out
6Latinprō-forward direction, forward movement
7Proto-Italic*pro-pro- see the Latin entry for further meanings
8Proto-Indo-Europeanpro-toward, forward
9Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
10Proto-Indo-Europeanper-before, in front; first; to go through
11Proto-Indo-Europeanpr̥tóspassed , crossed

via German immun

StepLanguageWordMeaning
1Germanimmunimmune
2Latinimmūnisfree or exempt from taxes, public service, or penalty (+ ablative)
3Latinin- -isless, without, lacking
4Latinīn-un-, non-, not
5Latinînin, at, on, upon, from (space)
6Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
7Proto-Italicenin
8Proto-Indo-Europeanh₁énin
Every word from Proto-Indo-European pr̥tós