An Etymological Dictionary of the German Language/Enterich
Enterich (Suab. antrecht), m., ‘drake,’ a modification of MidHG. antreche, OHG. antrahho (Dan. andrik); probably the correct form is *anutirahho?. In LG. simply Drake, equiv. to E. drake, which has certainly nothing to do with Drache, ‘dragon,’ Lat. draco. Other terms for drake are LG. erpel in Pomerania, weddik in Mecklenburg, and wart in Holstein, all of obscure origin. Note further Swiss and Bav. Entvogel for Enterich.