Source : Webster's Revised Unabridged Dictionary (1913)

Joviality \Jo`vi*al"i*ty\, n. [Cf. F. jovialit['e].]
   The quality or state of being jovial. --Sir T. Herbert.

Source : WordNet®

joviality
     n 1: feeling jolly and jovial and full of good humor [syn: {jollity}]
     2: a jovial nature [syn: {conviviality}]