• Wacke

    Origin

    Middle High German wacke "boulder," from Old High German waggo or wacko, yielding German Wacke, probably cognate with Old High German wegan "to move"

    Online Etymology Dictionary http://www.etymonline.com/index.php?search=wacke&searchmode=none

    Full definition of wacke

    Noun

    wacke

    (countable and uncountable; plural wackes)
    1. (geology) A soft, earthy, dark-coloured rock or clay derived from the alteration of basalt.

    Synonyms

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