Promissory
Pronunciation : Prom"is*so*ry
Part of Speech : a.
Definition : Defn: Containing a promise or binding declaration of something to be done or forborne. Promissory note (Law), a written promise to pay to some person named, and at a time specified therein, or on demand, or at sight, a certain sum of money, absolutely and at all events; -- frequently called a note of hand. Kent. Byles. Story.
Source : Webster's Unabridged Dictionary, 1913