The Collaborative International Dictionary of English v.0.48:

Dismiss \Dis*miss"\, v. t. [imp. & p. p. Dismissed; p. pr. &
   vb. n. Dismissing.] [L. dis- + missus, p. p. of mittere to
   send: cf. dimittere, OF. desmetre, F. d['e]mettre. See
   Demise, and cf. Dimit.]
   1. To send away; to give leave of departure; to cause or
      permit to go; to put away.
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            He dismissed the assembly.            --Acts xix.
                                                  41.
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            Dismiss their cares when they dismiss their flock.
                                                  --Cowper.
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            Though he soon dismissed himself from state affairs.
                                                  --Dryden.
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   2. To discard; to remove or discharge from office, service,
      or employment; as, the king dismisses his ministers; the
      matter dismisses his servant.
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   3. To lay aside or reject as unworthy of attentions or
      regard, as a petition or motion in court.
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