An Etymological Dictionary of the German Language/Koller

by Friedrich Kluge

Koller (1.), n. and m., ‘lady's ruff,’ from MidHG. koller, kollier, gollier, goller, m., ‘neckcloth,’ derived from Fr. collier (Lat. collarium).

Koller, (2.), m., ‘staggers,’ from MidHG. kolre, m., ‘staggers, frenzy, silent rage,’ OHG. cholero, m.; derived, like a number of medical terms, mediately from Gr. χολέρα, Lat. cholera; the ch has also in Rom. the value of a k; comp. Ital. collera, Fr. colère.