I. adjective
Etymology: from present participle of fiddle (II)
: trifling , petty
II. noun
Etymology: from gerund of fiddle (II)
: the process of sewing book sections together by hand with cross-stitch or overcast stitch from one section or group of leaves to the next in alternation often for use in books having a number of single leaves and having cords or bands in sawed-in grooves