Where does “Eisbohrkern” come from?

Eisbohrkern (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.

Eisbohrkern (German): ice core

Definitions

  1. ice core

Ancestry of “Eisbohrkern”, step by step

Eisbohrkern traces back through 3 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 eis

StepLanguageWordMeaning
1Germaneissingular imperative of eisen; first-person...
2Middle High Germanīs
3Old High Germanīsice
4Proto-West Germanicīsice
5Proto-Germanicīsąice
6Proto-Indo-Europeanh₁eyH-ice, frost

via German Bohr

StepLanguageWordMeaning
1GermanBohr
Every word from Proto-Indo-European ǵerh₂-Every word from Proto-Indo-European ǵr̥h₂nósEvery word from Proto-Indo-European ǵr̥h₂nóm