jocular

Etymology

From Latin iocularis, from ioculus (“a little jest”), diminutive of iocus (“a jest”).

adj

1. Humorous, amusing or joking.
   He was in a jocular mood all day.
   All we had was a short and jocular conversation.
   From the tone of the speaker, the last words might be understood to be jocular. 1865, Horatio Alger, “chapter IV”, in 'Paul Prescott's Charge
   Sometimes he would notice it, pat it, call it half-mocking, half-jocular names, and so make it caper with extraordinary delight. 1896, H. G. Wells, “chapter 15”, in The Island of Dr. Moreau
   Then papa began to get very tired of Jones, and fidgeted and finally said, with jocular irony, that Jones had better stay all night, they could give him a shake-down. 1910, Stephen Leacock, The Awful Fate of Melpomenus Jones