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.
He dismissed the assembly. --Acts xix.
Dismiss their cares when they dismiss their flock.
Though he soon dismissed himself from state affairs.
2. To discard; to remove or discharge from office, service,
or employment; as, the king dismisses his ministers; the
matter dismisses his servant.
3. To lay aside or reject as unworthy of attentions or
regard, as a petition or motion in court.