An Etymological Dictionary of the German Language/schröpfen

by Friedrich Kluge

schröpfen, vb., ‘to crop young wheat, tap (trees), cup,’ from the equiv. MidHG. schrępfen, schręffen; comp. AS. scrëpan, ‘to scratch’; also LG. schrappen, prop. an intensive form. The prim. meaning of the Teut. root skrëp is ‘to scratch, cut into’ (to this scharf is allied?). Ital. scaraffare, ‘to snatch away,’ is borrowed from HG.