The Collaborative International Dictionary of English v.0.48:

Witenagemote \Wit"e*na*ge*mote`\ (?; 277), n. [AS. witena
   gem[=o]t an assembly of the wise; wita a wise man + gem[=o]t
   assembly.] (AS. Hist.)
   A meeting of wise men; the national council, or legislature,
   of England in the days of the Anglo-Saxons, before the Norman
   Conquest.
   [1913 Webster]