Where does “Kernenergie” come from?

Kernenergie (German) comes from German kern, from Middle High German kerne, from Old High German kerno, from Proto-Germanic kernô, from Proto-Indo-European ǵr̥h₂nóm, from Proto-Indo-European ǵr̥h₂nós, from Proto-Indo-European ǵerh₂- — to grow old, to mature.

Kernenergie (German): nuclear energy

Definitions

  1. nuclear energy

Ancestry of “Kernenergie”, step by step

Kernenergie traces back through two separate lines of ancestry.

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

via German Energie

StepLanguageWordMeaning
1GermanEnergieenergy
2Ancient Greekἐνέργειᾰactivity, operation, vigour, efficiency
Every word from Proto-Indo-European ǵerh₂- →Every word from Proto-Indo-European ǵr̥h₂nós →Every word from Proto-Indo-European ǵr̥h₂nóm →