Where does “Steinkern” come from?

Steinkern (German) comes from German Kern, from Middle High German kern, 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.

Ancestry of “Steinkern”, step by step

Steinkern traces back through two separate lines of ancestry.

via German Kern

StepLanguageWordMeaning
1GermanKernkernel; grain; core, nucleus
2Middle High Germankern
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 Stein

StepLanguageWordMeaning
1GermanSteinstone, rock; pit; an old unit of weight
2Old High Germansteinstone
3Proto-West Germanicstainstone
4Proto-Germanicstainazstone
5Proto-Indo-Europeansteyh₂-to stiffen
6Proto-Indo-Europeansteh₂-to stand

Words derived from “Steinkern

Every word from Proto-Indo-European ǵerh₂-