[f. as prec. + -NESS.] Jocose quality or character; mirthfulness of disposition or style; waggishness.
1706. Reflex. upon Ridicule, 385. He talks with the same liberty, familiarity, and jocoseness.
1778. Mad. DArblay, Diary, Sept. She has really some drollery about her, and is very fond of jocoseness.
1859. G. Meredith, R. Feverel, xxi. The Baronet thought proper in his wisdom to water the dryness of his sermon with a little jocoseness.