The Collaborative International Dictionary of English v.0.48:

Autograph \Au"to*graph\, n. [F. autographe, fr. Gr. ?
   autographic; ? self + ? to write.]
   That which is written with one's own hand; an original
   manuscript; a person's own signature or handwriting.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Autograph \Au"to*graph\, a.
   In one's own handwriting; as, an autograph letter; an
   autograph will.
   [1913 Webster]

WordNet (r) 3.0 (2006):

autograph
    n 1: something written by one's own hand
    2: a person's own signature [syn: autograph, John Hancock]
    v 1: mark with one's signature; "The author autographed his
         book" [syn: autograph, inscribe]