The Collaborative International Dictionary
Facetiae \Fa*ce"ti*[ae]\, n. pl. [L., fr. facetus. See Facete.] Witty or humorous writings or saying; witticisms; merry conceits.
Wiktionary
n. (context rare English) witty or amusing writings or remarks.
Wikipedia
The Facetiae is an anthology of jokes by Poggio Bracciolini (1380–1459), first published in 1470. The collection, "the most famous jokebook of the Renaissance", is notable for its inclusion of scatological jokes and tales, six of the tales involving farting and six involving defecation.
Usage examples of "facetiae".
But the spit holding us together was the power of mutual facetiae to legitimize affection.
Mr Moffat, grieved in his soul, was becoming inextricably bewildered by such facetiae as these, when an egg--and it may be feared not a fresh egg--flung with unerring precision, struck him on the open part of his well-plaited shirt, and reduced him to speechless despair.
Edward, ruefully grinning, tried to inject placatory facetiae, Philip and Stephen sat white and ashamed, each on the arm of a chair in the little sitting-room.