Where does “greywacke” come from?

greywacke (English) comes from English grauwacke, from German Grauwacke, from German Grau, from Middle High German grā, from Old High German grāo, from Proto-Germanic grēwaz, from Proto-Indo-European ǵʰreh₁- — to become green, grow; to grow; to green, to grow.

greywacke (English): A hard dark sandstone with poorly sorted angular...

Definitions

  1. A hard dark sandstone with poorly sorted angular...

Ancestry of “greywacke”, step by step

StepLanguageWordMeaning
1EnglishgrauwackeGreywacke
2GermanGrauwacke—
3GermanGraugrey
4Middle High Germangrā—
5Old High Germangrāogrey
6Proto-Germanicgrēwazgrey
7Proto-Indo-Europeanǵʰreh₁-to become green, grow; to grow; to green, to grow

Words derived from “greywacke”

Every word from Proto-Indo-European ǵʰreh₁- →Every word from Proto-Germanic grēwaz →Every word from Old High German grāo →