† preostend,v.Obs.rare—1. [ad. late L. præostend-ĕre (Augustine), f.præ, pre- A. 1 + ostendĕre to ostend.] trans. To show or reveal beforehand. c1450Mirour Saluacioun 3339 This delyvraunce of man also godde preostendid When he Patriarche abraham fro hurr of Caldee delyvrid.