An Etymological Dictionary of the German Language/Stör
Stör, m., ‘sturgeon,’ from the equiv. MidHG. störe, stüre, OHG. sturo, sturio, m.; corresponding to Du. steur, AS. styrja (styra). The Teut. term sturjo passed in the form sturio (MidLat.) into Rom.; comp. Ital. storione, Fr. esturgeon, whence the equiv. E. sturgeon. The origin of the Teut. word is obscure.