The word jocund came from the influence of two Latin words, jocundus, which means pleasant, and jocus, which is just what it sounds like: a joke. Usually the word is used to describe people, but not always. Say your family gets together every year for a big, merry barbecue — you could describe it as a jocund gathering, or a jocund weekend. It's a sort of old-fashioned word, though, so use it sparingly.