Where does “Kernreaktion” come from?

Kernreaktion (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.

Kernreaktion (German): nuclear reaction

Definitions

  1. nuclear reaction

Ancestry of “Kernreaktion”, step by step

Kernreaktion 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 kern

StepLanguageWordMeaning
1Germankernkernel
2Middle High Germankerne—
3Old High Germankernocore; pith
4Proto-Germanickernôkernel, core
5Proto-Indo-Europeanǵr̥h₂nómgrain
6Proto-Indo-Europeanǵr̥h₂nósmatured, grown old
7Proto-Indo-Europeanǵerh₂-to grow old, to mature
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Latin rĕ- →
Kernreaktion — Etymology, Origin & Word History | Etymology Explorer