"mirthfulness," 1640s, from Medieval Latin iocularitas "jocular, facetious," from iocularis (adj.) "funny, laughable, comic" (see jocular).
Entries linking to jocularity
jocular adj.
1620s, "disposed to joking," from Latin iocularis "funny, comic," from ioculus "joke," diminutive of iocus "pastime; a joke" (see joke (n.)). Often it implies evasion of an issue by a joke.