Olmsted County Places - Eyota Township
EYOTA township, organized in 1858, was at first named Springfield, which was changed in 1859 to this Dakota or Sioux word, spelled iyotan by Riggs in the Dakota Dictionary, meaning "greatest, most." Eyota railway village, platted in November, 1864, was incorporated March 9, 1875.
Source:
MINNESOTA GEOGRAPHIC NAMES Their Origin and Historic Significance