Where does “Erdkruste” come from?

Erdkruste (German) comes from German Kruste, from Old High German krusta, from Latin crusta, from Proto-Italic *krustos, from Proto-Indo-European krustós, from Proto-Indo-European krews- — to form a crust, begin to freeze.

Erdkruste (German): Earth's crust

Definitions

  1. Earth's crust

Ancestry of “Erdkruste”, step by step

Erdkruste traces back through two separate lines of ancestry.

via German Kruste

StepLanguageWordMeaning
1GermanKrustecrust; scab on a wound
2Old High Germankrusta—
3LatincrustaThe hard surface of a body; rind, shell, crust,...
4Proto-Italic*krustos—
5Proto-Indo-Europeankrustóshardened
6Proto-Indo-Europeankrews-to form a crust, begin to freeze

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 krews- →Every word from Proto-Indo-European krustós →Every word from Proto-Italic *krustos →