Where does “ércek” come from?

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

Ancestry of “ércek”, step by step

StepLanguageWordMeaning
1Hungarianércore
2GermanErzore
3Middle High Germanarze—
4Old High Germanaruzzi—
5Proto-Germanicarutsore
6Proto-Germanicarud-—
7Sumerian?copper
Every word from Sumerian ? →Every word from Proto-Germanic arud- →Every word from Proto-Germanic aruts →