Where does “Gewitterwolke” come from?

Gewitterwolke (German) comes from German wolke, from Middle High German wolken, from Old High German wolkan, from Proto-Germanic wulkaną, from Proto-Indo-European welg- — wet, damp.

Gewitterwolke (German): thundercloud, cumulonimbus

Definitions

  1. thundercloud, cumulonimbus

Ancestry of “Gewitterwolke”, step by step

Gewitterwolke traces back through two separate lines of ancestry.

via German wolke

StepLanguageWordMeaning
1Germanwolkecloud, made of steam, ash, smoke or anything that resembles such a mass (may also be Schwaden or Schwade in this sense)
2Middle High Germanwolkencloud
3Old High Germanwolkan—
4Proto-Germanicwulkanącloud
5Proto-Indo-Europeanwelg-wet, damp

via German Gewitter

StepLanguageWordMeaning
1GermanGewitterthunderstorm, lightning storm
Every word from Proto-Indo-European welg- →Every word from Proto-Germanic wulkaną →Every word from Old High German wolkan →