Source : Webster's Revised Unabridged Dictionary (1913)

Cashier \Cash*ier"\ (k[a^]sh*[=e]r"), n. [F. caissier, fr.
   caisse. See {Cash}.]
   One who has charge of money; a cash keeper; the officer who
   has charge of the payments and receipts (moneys, checks,
   notes), of a bank or a mercantile company.

Cashier \Cash*ier"\, v. t. [imp. & p. p. {Cahiered}; p. pr. &vb.
   n. {Cashiering}.] [Earlier cash, fr. F. casser to break,
   annul, cashier, fr. L. cassare, equiv. to cassum reddere, to
   annul; cf. G. cassiren. Cf. {Quash} to annul, {Cass}.]
   1. To dismiss or discard; to discharge; to dismiss with
      ignominy from military service or from an office or place
      of trust.

            They have cashiered several of their followers.
                                                  --Addison.

            He had insolence to cashier the captain of the lord
            lieutenant's own body guard.          --Macaulay.

   2. To put away or reject; to disregard. [R.]

            Connections formed for interest, and endeared

            By selfish views, [are] censured and cashiered.
                                                  --Cowper.

            They absolutely cashier the literal express sense of
            the words.                            --Sowth.

Source : WordNet®

cashier
     n 1: an employee of a bank who receives and pays out money [syn:
          {teller}, {bank clerk}]
     2: a person responsible for receiving payments for goods and
        services (as in a shop or restaurant)

cashier
     v 1: discard or do away with; "cashier the literal sense of this
          word"
     2: discharge with dishonor, as in the army