The Collaborative International Dictionary of English v.0.48:

Manito \Man"i*to\, Manitou \Man"i*tou\, Manitu \Man"i*tu\, n.
   A name given by tribes of American Indians to a great spirit,
   whether good or evil, or to any object of worship. --Tylor.
   [1913 Webster]

         Gitche Manito the mighty,
         The Great Spirit, the creator,
         Smiled upon his helpless children!       --Longfellow.
   [1913 Webster]

         Mitche Manito the mighty,
         He the dreadful Spirit of Evil,
         As a serpent was depicted.               --Longfellow.
   [1913 Webster]

U.S. Gazetteer Places (2000):

Manito, IL -- U.S. village in Illinois
   Population (2000):    1733
   Housing Units (2000): 723
   Land area (2000):     1.539114 sq. miles (3.986287 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    1.539114 sq. miles (3.986287 sq. km)
   FIPS code:            46383
   Located within:       Illinois (IL), FIPS 17
   Location:             40.422723 N, 89.780056 W
   ZIP Codes (1990):     61546
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Manito, IL
    Manito