An Etymological Dictionary of the German Language/Kriekente
Kriekente, f., ‘teal,’ a LG. form for HG. Kriech-Ente; wanting in MidHG. and OHG.; it is based on Lat. anas crecca, hence also Swed. kräcka. Fr. sarcelle, ‘teal,’ like Ital. cerceta, is traced to Lat. anas querquedula; thus it has no etymological connection with Kriechente; the same may be said of E. crake, corncrake.