au·to·graph 
(ôtə-grăf′)
(ôtə-grăf′)n.
1. A person's own signature, especially considered as a collector's item.
2.
a. A person's own handwriting.
b. A manuscript in the author's handwriting.
tr.v. au·to·graphed, au·to·graph·ing, au·to·graphs
1. To write one's name or signature on or in; sign: The actor autographed a picture of himself.
2. To write in one's own handwriting.
adj.
Written in the writer's own handwriting: an autograph letter.
[Late Latin autographum, from neuter of Latin autographus, written with one's own hand, from Greek autographos : auto-, auto- + graphein, to write; see -GRAPH.]
au′to·graphic, au′to·graphi·cal adj.
au′to·graphi·cal·ly adv.