early 15c., from Middle French epilogue (13c.), from Latin epilogus, from Greek epilogos "conclusion of a speech," from epi "upon, in addition" (see epi-) + logos "a speaking" (see lecture (n.)). Earliest English sense was theatrical.
1. Extended Programming In LOGic. PROLOG with several AND's having different time constraints. ["Epilog: A Language for Extended Programming in Logic", A. Porto in Implementations of Prolog, J.A. Campbell ed, Ellis Horwood 1984]. 2. A data-driven PROLOG, with both AND parallelism and OR parallelism. ["EPILOG = PROLOG + Data Flow", M.J. Wise, SIGPLAN Noices 17:80-86 (1982)].