One who writes or delivers an epilogue; a person who composes concluding remarks or afterwords.
From epilog + '-ist' suffix (one who practices), formed in 19th-century theatrical contexts to describe actors or writers who specialized in epilogues.
In Shakespeare's time, epilogists were actually important roles—special actors who stepped forward at the end to apologize if the play was bad or ask for applause, like ancient theater's version of post-show interviews!
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