Where does “erc” come from?

erc (Silesian) comes from German Erz, from Middle High German arze, from Old High German aruzzi, from Proto-Germanic aruts, from Proto-Germanic arud-, from Sumerian ? — copper.

erc (Silesian): ore

Definitions

  1. ore

Ancestry of “erc”, step by step

StepLanguageWordMeaning
1GermanErzore
2Middle High Germanarze—
3Old High Germanaruzzi—
4Proto-Germanicarutsore
5Proto-Germanicarud-—
6Sumerian?copper
Every word from Sumerian ? →Every word from Proto-Germanic arud- →Every word from Proto-Germanic aruts →