The Collaborative International Dictionary of English v.0.48:

Frolic \Frol"ic\ (fr[o^]l"[i^]k), a. [D. vroolijk; akin to G.
   fr["o]lich, fr. froh, OHG. fr[=o], Dan. fro, OS. fr[=a]h, cf.
   Icel. fr[=a]r swift; all perh. akin to Skr. pru to spring
   up.]
   Full of levity; dancing, playing, or frisking about; full of
   pranks; frolicsome; gay; merry.
   [1913 Webster]

         The frolic wind that breathes the spring. --Milton.
   [1913 Webster]

         The gay, the frolic, and the loud.       --Waller.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Frolic \Frol"ic\, n.
   1. A wild prank; a flight of levity, or of gayety and mirth.
      [1913 Webster]

            He would be at his frolic once again. --Roscommon.
      [1913 Webster]

   2. A scene of gayety and mirth, as in lively play, or in
      dancing; a merrymaking.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Frolic \Frol"ic\, v. i. [imp. & p. p. Frolicked; p. pr. & vb.
   n. Frolicking.]
   To play wild pranks; to play tricks of levity, mirth, and
   gayety; to indulge in frolicsome play; to sport.
   [1913 Webster]

         Hither, come hither, and frolic and play. --Tennyson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

frolic
    n 1: gay or light-hearted recreational activity for diversion or
         amusement; "it was all done in play"; "their frolic in the
         surf threatened to become ugly" [syn: play, frolic,
         romp, gambol, caper]
    v 1: play boisterously; "The children frolicked in the garden";
         "the gamboling lambs in the meadows"; "The toddlers romped
         in the playroom" [syn: frolic, lark, rollick,
         skylark, disport, sport, cavort, gambol, frisk,
         romp, run around, lark about]

Moby Thesaurus II by Grady Ward, 1.0:

81 Moby Thesaurus words for "frolic":
   antic, beam, caper, caracole, carol, carouse, carry on, cavort,
   celebration, chirp, chirrup, clap hands, curvet, cut a dido,
   cut capers, cut up, dance, delight, dido, disport, escapade, exult,
   festivity, flounce, fool around, frisk, fun and games, gaiety,
   gambado, gambol, glory, glow, have fun, hell, high jinks,
   horse around, horseplay, jollification, jollity, joy, jubilate,
   lark, laugh, lilt, make whoopee, merriment, merrymaking, mirth,
   monkeyshine, monkeyshines, party, partying, play, practical joke,
   prank, radiate cheer, rejoice, revel, revelry, riot, roister,
   rollick, romp, shenanigan, shenanigans, shines, sing, skip,
   skip for joy, skylark, skylarking, smile, sparkle, sport, spree,
   tomfoolery, trick, trip, waggish trick, wassail, whistle



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

Frolic

   A Prolog system in Common Lisp.

   (ftp://ftp.cs.utah.edu/pub/frolic.tar.Z).

   (1991-11-23)