Preface(n.) Something spoken as introductory to a discourse, or written as introductory to a book or essay; a proem; an introduction, or series of preliminary remarks.
Preface(n.) The prelude or introduction to the canon of the Mass.
Preface(v. i.) To make a preface.
Preface(v. t.) To introduce by a preface; to give a preface to; as, to preface a book discourse.
Prefaced(imp. & p. p.) of Preface
Prefacer(n.) The writer of a preface.
Prefacing(p. pr. & vb. n.) of Preface

Words within prefacing