Lewis Short
(adjective) : praescriptīvus, a, um, praescribo, II. B.
* Of or relating to a legal exception or demurrer (post-class.): praescriptivae quaestiones, Jul. Vict. Art. Rhet. 3, 10: quaestiunculae,id. ib. 4, 1: praescripti vum praecedens,Sulp. Viet. Inst. Or. p. 282. —Adv.: praescriptīvē, with an exception (eccl. Lat.): occurrere,Tert. adv. Marc. 4, 1.
Charlton T. Lewis, Charles Short, A Latin Dictionary