Source : Webster's Revised Unabridged Dictionary (1913)

Festivity \Fes*tiv"i*ty\, n.; pl. {Festivities}. [L. festivitas:
   cf. F. festivit['e].]
   1. The condition of being festive; social joy or exhilaration
      of spirits at an entertaintment; joyfulness; gayety.

            The unrestrained festivity of the rustic youth.
                                                  --Bp. Hurd.

   2. A festival; a festive celebration. --Sir T. Browne.

Source : WordNet®

festivity
     n : any joyous diversion [syn: {celebration}]