GROUND RENT, estates. In Pennsylvania, this term is used to signify a perpetual rent issuing out of some real estate. This rent is redeemable where there is a covenant in the deed that, before the expiration of a period therein named, it may be redeemed by the payment of a certain sum of money; or it is irredeemable, when there is no such agreement; and, in the latter case, it cannot be redeemed without the consent of both parties. See 1 Whart. R. 837; 4 Watts, R. 98; Cro. Jac. 510; 6 Halst. 262; 7 Wend. 463; 7 Pet. 596; 2 Bouv. Inst. n. 1659, and note, and Emphyteosis.