prologue
C1Substantiv/US /prˈoʊlɑɡ/ PRŌL-äg; UK /prˈoʊlɑɡ/ PRŌL-äg/
The preface or introduction to a discourse, poem, or performance; as, the prologue of Chaucer's "Canterbury Tales;" esp., a discourse or poem spoken before a dramatic performance 2.
