An Etymological Dictionary of the German Language/Tücke
Tücke, f., ‘trick, spite, malice,’ from MidHG. tücke; properly plur. of older ModHG. Tuck, MidHG. tuc(k), duc (ck), m., ‘blow, push, rapid movement, sly trick, sleight of hand, craftiness.’ The word is wanting in OHG. and the other OTeut. languages, hence its earlier form cannot be discovered.