Source : Webster's Revised Unabridged Dictionary (1913)

Jocund \Joc"und\, [L. jocundus, jucundus, orig., helpful, fr.
   juvare to help. See {Aid}.]
   Merry; cheerful; gay; airy; lively; sportive.

         Night's candles are burnt out, and jocund day Stands
         tiptoe on the misty mountain tops.       --Shak.

         Rural sports and jocund strains.         --Prior.
   -- {Joc"und*ly}, adv. -- {Joc"und*ness}, n.

Jocund \Joc"und\, adv.
   Merrily; cheerfully. --Gray.

Source : WordNet®

jocund
     adj : 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}, {jolly}, {jovial},
            {merry}, {mirthful}]