† proseˈpilogismLogic. Obs.rare. [f.Gr. πρός in addition + epilogism. Cf. prossyllogism.] (See quot.) 1620T. Granger Div. Logike 281 The proofe of the premises of the Prossyllogisme, is called an Epilogisme; and the proofe of any part hereof also is called a Prosepilogisme.