a preliminary statement in a book by the book's author or editor, setting forth its purpose and scope, expressing acknowledgment of assistance from others, etc.
2.
an introductory part, as of a speech.
3.
something preliminary or introductory: The meeting was the preface to an alliance.
4.
Ecclesiastical. a prayer of thanksgiving, the introduction to the canon of the Mass, ending with the Sanctus.
Origin: 1350–1400;Middle English < Middle French < Medieval Latinprēfātia, for Latinpraefātiō a saying beforehand, equivalent to praefāt(us) (past participle of praefārī to say beforehand; see pre-, fate) + -iōn--ion
Related forms
pref·ac·er, noun
un·pref·aced, adjective
Synonyms 1. See introduction. 2, 3. preamble, prologue, prolegomena.
late 14c., from O.Fr. preface (14c.), from M.L. prefatia, from L. præfatio "fore-speaking, introduction, prologue," from præfatus, pp. of præfari "to say beforehand," from præ- "before" + fari "speak" (see fame). The verb is 1616, from the noun.