Source : Webster's Revised Unabridged Dictionary (1913)

Exode \Ex"ode\n. [L. exodium, Gr. ? (sc. ? song) fr. ? belonging
   to an exit, or to the finale of a tragedy, fr. ?: cf. F.
   exode. See {Exodus}.]
   1. Departure; exodus; esp., the exodus of the Israelites from
      Egypt. [Obs.] --L. Coleman. Bolingbroke.

   2. (Gr. Drama) The final chorus; the catastrophe.

   3. (Rom. Antig.) An afterpiece of a comic description, either
      a farce or a travesty.

Source : WordNet®

exode
     n : a farcical afterpiece in the ancient Roman theater