I wonder how would this word eventually give rise to what we now call 'epilogue' of a story.
Here's what I found on the trusty site :D Dictionary.comhttp://www.etymonline.com/index.php
"epilogue (n.) early 15c., from Middle French epilogue (13c.), from Latin epilogus, from Greek epilogos "a conclusion, conclusion of a speech, inference," from epi "upon, in addition" (see epi-) + logos "a speaking" (see lecture (n.)). Earliest English sense was theatrical."
So it was from 'choice' to 'conclusion'. Good to know. Thanks for your search!