An Etymological Dictionary of the German Language/Annotated/Tücke
Tücke, feminine, ‘trick, spite, malice,’ from Middle High German tücke; properly plural of older Modern High German Tuck, Middle High German tuc(k), duc (ck), masculine, ‘blow, push, rapid movement, sly trick, sleight of hand, craftiness.’ The word is wanting in Old High German and the other Old Teutonic languages, hence its earlier form cannot be discovered.