An Etymological Dictionary of the German Language/Annotated/Bücken

Bücken, verb, ‘to stoop, bow,’ from Middle High German bücken, ‘to bend, bow’; frequentative of biegen, like schmücken of schmiegen. The Swiss bukχe points to Old High German bucchen (Swiss bukχ, ‘bend’); compare Low German bucken, ‘to stoop.’ See Buckel.