The Collaborative International Dictionary of English v.0.48:

jovial \jo"vi*al\, a. [F., fr. L. Jovialis pertaining to Jove.
   The planet Jupiter was thought to make those born under it
   joyful or jovial. See Jove.]
   [1913 Webster]
   1. [capitalized] Of or pertaining to the god, or the planet,
      Jupiter. [Obs.]
      [1913 Webster]

            Our jovial star reigned at his birth. --Shak.
      [1913 Webster]

            The fixed stars astrologically differenced by the
            planets, and esteemed Martial or Jovial according to
            the colors whereby they answer these planets. --Sir
                                                  T. Browne.
      [1913 Webster]

   2. Sunny; serene. [Obs.] "The heavens always joviall."
      --Spenser.
      [1913 Webster]

   3. Gay; merry; joyous; jolly; mirth-inspiring; hilarious;
      characterized by mirth or jollity; as, a jovial youth; a
      jovial company; a jovial poem.
      [1913 Webster]

            Be bright and jovial among your guests. --Shak.
      [1913 Webster]

            His odes are some of them panegyrical, others moral;
            the rest are jovial or bacchanalian.  --Dryden.
      [1913 Webster]

   Note: This word is a relic of the belief in planetary
         influence. Other examples are saturnine, mercurial,
         martial, lunatic, etc.

   Syn: Merry; joyous; gay; festive; mirthful; gleeful; jolly;
        hilarious.
        [1913 Webster]

WordNet (r) 3.0 (2006):

jovial
    adj 1: full of or showing high-spirited merriment; "when hearts
           were young and gay"; "a poet could not but be gay, in
           such a jocund company"- Wordsworth; "the jolly crowd at
           the reunion"; "jolly old Saint Nick"; "a jovial old
           gentleman"; "have a merry Christmas"; "peals of merry
           laughter"; "a mirthful laugh" [syn: gay, jocund,
           jolly, jovial, merry, mirthful]

Moby Thesaurus II by Grady Ward, 1.0:

42 Moby Thesaurus words for "jovial":
   affable, amiable, bantering, blithe, blithesome, boon, buxom,
   chaffing, convivial, facetious, festal, festive, free and easy,
   frivolous, gala, gay, genial, gladsome, gleeful, good-natured,
   hail-fellow-well-met, hearty, hilarious, humorous, jocose, jocular,
   jocund, jolly, jollying, joshing, joyful, joyous, laughter-loving,
   lighthearted, merry, merrymaking, mirth-loving, mirthful,
   on the loose, rejoicing, risible, sociable



The Free On-line Dictionary of Computing (30 December 2018):

JOVIAL

    (Jule's Own Version of IAL) A version of IAL
   produced by Jules I. Schwartz in 1959-1960.  JOVIAL was based
   on ALGOL 58, with extensions for large scale real-time
   programming.  It saw extensive use by the US Air Force.  The
   data elements were items, entries (records) and tables.

   Versions include JOVIAL I (IBM 709, 1960), JOVIAL II (IBM
   7090, 1961) and JOVIAL 3 (1965).  Dialects: J3, JOVIAL
   J73, JS, JTS.

   Ada/Jovial Newsletter, Dale Lange +1 (513) 255-4472.

   [CACM 6(12):721, Dec 1960].

   (1996-07-19)