wacke
English
Etymology
From Middle High German wacke (“boulder”), from Old High German waggo or wacko, yielding German Wacke, probably cognate with Old High German wegan (“to move”). [1]
Noun
wacke (countable and uncountable, plural wackes)
- (geology) A soft, earthy, dark-coloured rock or clay derived from the alteration of basalt.
Synonyms
- wacky
Related terms
- graywacke, greywacke
References
- Online Etymology Dictionary