Promissory note
Ballentine's Law Dictionary · James A. Ballentine · 1916
Ballentine's Law Dictionary
A written promise by one to pay to another therein named or order a certain sum of money at all events and at a time specified therein, or at a time which must certainly arrive.
See 142 111. 589, 34 Am. St. Rep. 9SI, 18 L. R. A. 428, 32 N. E. 495.