Source : Webster's Revised Unabridged Dictionary (1913)

Cryptograph \Cryp"to*graph\ (-gr?f), n. [Gr. krypto`s hidden +
   -graph: cf. F. cryptographe.]
   Cipher; something written in cipher. ``Decipherers of
   cryptograph.'' --J. Earle.

Source : WordNet®

cryptograph
     n 1: a secret method of writing [syn: {cipher}, {cypher}, {secret
          code}]
     2: a piece of writing in code or cipher [syn: {cryptogram}, {secret
        writing}]
     3: a device for deciphering codes and ciphers