The Collaborative International Dictionary of English v.0.48:
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. [1913 Webster] The unrestrained festivity of the rustic youth. --Bp. Hurd. [1913 Webster] 2. A festival; a festive celebration. --Sir T. Browne. [1913 Webster]