Backadation
Defined in 2 dictionaries — Cyclopedic (1922), Ballentine's (1916)
The Cyclopedic Law Dictionary
Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
or BACKWARDATION. A consideration given to keep back the delivery of stock when the price is lower for time than for ready money. Wharton.
Ballentine's Law Dictionary
James A. Ballentine · 1916
A sum paid by the vendor of stock to postpone the date of delivery.