An Etymological Dictionary of the German Language/Gekröse

by Friedrich Kluge

Gekröse, n., ‘giblets; frill, ruffle,’ from MidHG. gekrœse, n., ‘the small intestine,’ also the variant krœse, OHG. *chrôsi; akin to Du. kroes, kroost, ‘giblets of ducks and geese.’ All the cognates are probably connected with kraus.