n [C usually singular][
Date: 1300-1400;
Language: Old French;Origin:Latin prologus
'first part of a play', from
Greek, from pro-
'before' + legein
'to speak']
the introduction to a play, a long poem etc
→
epilogueliterary an act or event that leads to a more important event
prologue to a prologue to the final abandonment of trams in London