Source : Webster's Revised Unabridged Dictionary (1913)

Discomfit \Dis*com"fit\, v. t. [imp. & p. p. {Discomfited}; p.
   pr. & vb. n. {Discomfiting}.] [OF. desconfit, p. p. of
   desconfire, F. d['e]confire; fr. L. dis- + conficere to make
   ready, prepare, bring about. See {Comfit}, {Fact}.]
   1. To scatter in fight; to put to rout; to defeat.

            And his proud foes discomfit in victorious field.
                                                  --Spenser.

   2. To break up and frustrate the plans of; to balk? to throw
      into perplexity and dejection; to disconcert.

            Well, go with me and be not so discomfited. --Shak.

   Syn: To defeat; overthrow; overpower; vanquish; conquer;
        baffle; frustrate; confound; discourage.

Discomfit \Dis*com"fit\, a.
   Discomfited; overthrown. [Obs.]

Discomfit \Dis*com"fit\, n.
   Rout; overthrow; discomfiture.

         Such as discomfort as shall quite despoil him.
                                                  --Milton.

Source : WordNet®

discomfit
     v : cause to lose one's composure [syn: {upset}, {discompose}, {untune},
          {disconcert}]