An Etymological Dictionary of the German Language/Klumpe
Appearance
Klumpe, Klumpen, m., ‘slump, lump,’ ModHG. only; from the equiv. LG. klamp, Du. klomp, m.; comp. E. clump. Scand. klumba, f., ‘club,’ with a different labial, also a variant klubba; klubbu-fótr, whence the equiv. E. ‘club-foot.’ Further references have not been discovered. Comp. Kolben.