The Collaborative International Dictionary of English v.0.48:

Prodigy \Prod"i*gy\, n.; pl. Prodigies. [ L. prodigium; pro
   before + (perh.) a word appearing in adagium adage: cf. F.
   prodige. Cf. Adage. ]
   [1913 Webster]
   1. Something extraordinary, or out of the usual course of
      nature, from which omens are drawn; a portent; as,
      eclipses and meteors were anciently deemed prodigies.
      [1913 Webster]

            So many terrors, voices, prodigies,
            May warn thee, as a sure foregoing sign. --Milton.
      [1913 Webster]

   2. Anything so extraordinary as to excite wonder or
      astonishment; a marvel; as, a prodigy of learning.
      [1913 Webster]

   3. A production out of ordinary course of nature; an abnormal
      development; a monster. --B. Jonson.
      [1913 Webster]

   Syn: Wonder; miracle; portent; marvel; monster.
        [1913 Webster]

WordNet (r) 3.0 (2006):

prodigy
    n 1: an unusually gifted or intelligent (young) person; someone
         whose talents excite wonder and admiration; "she is a chess
         prodigy"
    2: a sign of something about to happen; "he looked for an omen
       before going into battle" [syn: omen, portent, presage,
       prognostic, prognostication, prodigy]
    3: an impressive or wonderful example of a particular quality;
       "the Marines are expected to perform prodigies of valor"

The Free On-line Dictionary of Computing (19 January 2023):

Prodigy

    A commercial on-line conferencing service,
   co-developed by IBM and Sears, Roebuck, Inc.

   Prodigy's main competitors are AOL and Compuserve.

   (1995-03-01)