An Etymological Dictionary of the German Language/Bücken
Appearance
Bücken, vb., ‘to stoop, bow,’ from MidHG. bücken, ‘to bend, bow’; frequentative of biegen, like schmücken of schmiegen. The Swiss bukχe points to OHG. bucchen (Swiss bukχ, ‘bend’); comp. LG. bucken, ‘to stoop.’ See Buckel.