endowed with or characterized by a hearty, joyous humor or a spirit of good-fellowship:a wonderfully jovial host.
Mythology(cap.) of or pertaining to the god Jove, or Jupiter.
Medieval Latin joviālis of Jupiter (the planet, supposed to exert a happy influence), equivalent. to Latin jovi- (see Jovian) + -ālis -al1
1.See corresponding entry in Unabridged merry, jolly, convivial, gay, joyful, mirthful. Jovial,jocose,jocular,jocund agree in referring to someone who is in a good humor. Jovial suggests a hearty, joyous humor:a jovial person.Jocose refers to that which causes laughter; it suggests someone who is playful and given to jesting:with jocose and comical airs.Jocular means humorous, facetious, mirthful, and waggish:jocular enough to keep up the spirits of all around him.Jocund, now a literary word, suggests a cheerful, light-hearted, and sprightly gaiety:glad and jocund company.