Where does “Erdkern” come from?

Erdkern (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.

Erdkern (German): Earth's core

Definitions

  1. Earth's core

Ancestry of “Erdkern”, step by step

Erdkern 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 ërde

StepLanguageWordMeaning
1Germanërdeearth
2Middle High Germanërdeearth
3Old High GermanerdaThe Earth; earth, ground, soil
4Proto-West Germanicerþuearth, world; earth, soil
5Proto-Germanicerþōearth
6Proto-Indo-Europeanh₁er-earth
Every word from Proto-Indo-European ǵerh₂- →Every word from Proto-Indo-European ǵr̥h₂nós →Every word from Proto-Indo-European ǵr̥h₂nóm →