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)

  1. (geology) A soft, earthy, dark-coloured rock or clay derived from the alteration of basalt.

Synonyms

References
  1. Online Etymology Dictionary
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