Source : Webster's Revised Unabridged Dictionary (1913)

Confound \Con*found"\ (k[o^]n*found"), v. t. [imp. & p. p.
   {Confounded}; p. pr. & vb. n. {Confounding}.] [F. confondre,
   fr. L. confundere, -fusum, to pour together; con- + fundere
   to pour. See {Fuse} to melt, and cf. {Confuse}.]
   1. To mingle and blend, so that different elements can not be
      distinguished; to confuse.

            They who strip not ideas from the marks men use for
            them, but confound them with words, must have
            endless dispute.                      --Locke.

            Let us go down, and there confound their language.
                                                  --Gen. xi. 7.

   2. To mistake for another; to identify falsely.

            They [the tinkers] were generally vagrants and
            pilferers, and were often confounded with the
            gypsies.                              --Macaulay.

   3. To throw into confusion or disorder; to perplex; to strike
      with amazement; to dismay.

            The gods confound... The Athenians both within and
            out that wall.                        --Shak.

            They trusted in thee and were not confounded. --Ps.
                                                  xxii. 5.

            So spake the Son of God, and Satan stood A while as
            mute, confounded what to say.         --Milton.

   4. To destroy; to ruin; to waste. [Obs.]

            One man's lust these many lives confounds. --Shak.

            How couldst thou in a mile confound an hour? --Shak.

   Syn: To abash; confuse; baffle; dismay; astonish; defeat;
        terrify; mix; blend; intermingle. See {Abash}.

Source : WordNet®

confounding
     adj : that confounds or contradicts or confuses [syn: {contradictory}]