Prologue

Prologue: "an introductory or preceding event or development"

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Main Entry: pro·logue

Variant(s): also pro·log \ˈprō-ˌlȯg, -ˌläg\

Function: noun

Etymology: Middle English prolog,from Anglo-French prologue, from Latin prologus preface to a play, from Greek prologos part of a Greek play preceding the entry of the chorus, from pro- before + legein to speak — more at pro-, legend

Date: 14th century

1 : the preface or introduction to a literary work 2 a : a speech often in verse addressed to the audience by an actor at the beginning of a play b :the actor speaking such a prologue 3: an introductory or preceding event or development