Friedrich Kluge2508726An Etymological Dictionary of the German Language, Z — Zeisig1891John Francis Davis
Zeisig, m., ‘siskin,’ from the equiv. MidHG. zîsec, usually zîse, f. Borrowed, like Stieglitz and Kiebitz, from Slav. (Pol. czyż, Bohem. čižek), whence also LG. ziseke, sieske, Du. sijsje. E. siskin, Dan. sisgen, Swed. siska.