An Etymological Dictionary of the German Language/Annotated/vergeuden

by Friedrich Kluge

vergeuden, verb, ‘to squander, dissipate,’ from Middle High German giuden (übergiuden), weak verb, ‘to boast, make a parade, squander with ostentation’; unknown to Old High German Gothic *giwiþa might refer to Old High German gëwôn, ‘to open one's mouth wide’ (see gähnen).