Polygraphy
Pronunciation : Po*lyg"ra*phy
Part of Speech : n.
Etymology : [Gr. polygraphie.]
Definition : 1. Much writing; writing of many books. [Obs.] Fuller.
2. The art of writing in various ciphers, and of deciphering the same. [R.]
3. The art or practice of using a polygraph.
Source : Webster's Unabridged Dictionary, 1913