What is Age Prayer?

Legal Definition
A suggestion of nonage, made by an infant party to a real action. with a prayer that the proceedings may be deferred until his full age. It is now abolished. St. 11 Geo. IV.; 1 Wm. IV. c. 37, § 10; 1 Lil. Reg. 54; 3 Bl. Comm. 300.
-- Black's Law Dictionary
Legal Definition
A request of an infant party to a real action for a stay of proceedings until his majority.
-- Ballentine's Law Dictionary