adjective 1. given to, characterized by, intended for, or suited to joking or jesting; waggish; facetious: jocular remarks about opera stars.
His satire, his alternately jocular and thoughtful interviewing style and his instinct for identifying clever collaborators all blossomed as he found his footing and the ideal forum for his informed sensibilities. -- Matthew Love, "Jon Stewart: The Long Goodnight" Rolling Stone, February 11, 2015
Jocular can be traced to the Latin jocus meaning "joke." It entered English in the 1620s.