Source : Webster's Revised Unabridged Dictionary (1913)

Appendix \Ap*pen"dix\, n.; pl. E. {Appendixes}, L. {Appendices}.
   [L. appendix, -dicis, fr. appendere. See {Append}.]
   1. Something appended or added; an appendage, adjunct, or
      concomitant.

            Normandy became an appendix to England. --Sir M.
                                                  Hale.

   2. Any literary matter added to a book, but not necessarily
      essential to its completeness, and thus distinguished from
      supplement, which is intended to supply deficiencies and
      correct inaccuracies.

   Syn: See {Supplement}.