This arises in English ecclesiastical law, when an agreement is made between the owner of lands and the incumbent of a benefice, with the consent of the ordinary and the patron, that the lands shall, for the future, be discharged from payment of tithes, by reason of some land or other real recompense given in lieu and satisfaction thereof. 2 Bl. Comm. 28; 3 Steph. Comm. 129.