Chirograph
Pronunciation : Chi"ro*graph
Part of Speech : n.
Etymology : [Gr. (Old. Law) (a) A writing which, reguiring a counterpart, was engrossed twice on the same piece of parchment, with a space between, in which was written the word chirographum, through which the parchment was cut, and one part given to each party. It a
Source : Webster's Unabridged Dictionary, 1913