The Collaborative International Dictionary of English v.0.48:

Except \Ex*cept"\, prep. [Originally past participle, or verb in
   the imperative mode.]
   With exclusion of; leaving or left out; excepting.
   [1913 Webster]

         God and his Son except,
         Created thing naught valued he nor . . . shunned.
                                                  --Milton.

   Syn: Except, Excepting, But, Save, Besides.

   Usage: Excepting, except, but, and save are exclusive. Except
          marks exclusion more pointedly. "I have finished all
          the letters except one," is more marked than "I have
          finished all the letters but one." Excepting is the
          same as except, but less used. Save is chiefly found
          in poetry. Besides (lit., by the side of) is in the
          nature of addition. "There is no one here except or
          but him," means, take him away and there is nobody
          present. "There is nobody here besides him," means, he
          is present and by the side of, or in addition to, him
          is nobody. "Few ladies, except her Majesty, could have
          made themselves heard." In this example, besides
          should be used, not except.
          [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Except \Ex*cept"\, v. t. [imp. & p. p. Excepted; p. pr. & vb.
   n. Excepting.] [L. exceptus, p. p. of excipere to take or
   draw out, to except; ex out + capere to take: cf. F.
   excepter. See Capable.]
   1. To take or leave out (anything) from a number or a whole
      as not belonging to it; to exclude; to omit.
      [1913 Webster]

            Who never touched
            The excepted tree.                    --Milton.
      [1913 Webster]

            Wherein (if we only except the unfitness of the
            judge) all other things concurred.    --Bp.
                                                  Stillingfleet.
      [1913 Webster]

   2. To object to; to protest against. [Obs.] --Shak.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Except \Ex*cept"\, v. i.
   To take exception; to object; -- usually followed by to,
   sometimes by against; as, to except to a witness or his
   testimony.
   [1913 Webster]

         Except thou wilt except against my love. --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Except \Ex*cept"\ ([e^]k*s[e^]pt"), conj.
   Unless; if it be not so that.
   [1913 Webster]

         And he said, I will not let thee go, except thou bless
         me.                                      --Gen. xxxii.
                                                  26.
   [1913 Webster]

         But yesterday you never opened lip,
         Except, indeed, to drink.                --Tennyson.
   [1913 Webster]

   Note: As a conjunction unless has mostly taken the place of
         except.
         [1913 Webster]

WordNet (r) 3.0 (2006):

except
    v 1: take exception to; "he demurred at my suggestion to work on
         Saturday" [syn: demur, except]
    2: prevent from being included or considered or accepted; "The
       bad results were excluded from the report"; "Leave off the
       top piece" [syn: exclude, except, leave out, leave
       off, omit, take out] [ant: include]

Moby Thesaurus II by Grady Ward, 1.0:

148 Moby Thesaurus words for "except":
   abjure, abscind, absolve, amputate, annihilate, apart from,
   aside from, ban, bar, barring, bate, beside, besides, bob,
   brush aside, but, chuck, chuck out, clip, contemn, contradict,
   count out, crop, cull, cut, cut away, cut off, cut out, debar,
   decline, deny, despise, disapprove, discard, discharge, disclaim,
   discount, discounting, disdain, dismiss, disown, dispense from,
   dispense with, disregard, dock, eliminate, enucleate, eradicate,
   ex, except for, except that, excepting, exception taken of, excise,
   exclude, excluding, exclusive of, excuse, exempt, expostulate,
   extinguish, extirpate, forswear, free, from,
   give dispensation from, grant immunity, however, if not, ignore,
   inveigh against, isolate, kick, knock off, leave out, leaving out,
   less, let alone, let go, let off, lop, minus, mutilate, nip,
   not counting, object, off, omit, omitting, other than, outside of,
   pare, pass by, pass over, pass up, peel, pick out, precluding,
   protest, prune, push aside, rebuff, recant, refuse,
   refuse to consider, reject, release, remise, remit, remonstrate,
   renounce, repel, repudiate, repulse, root out, rule out, save,
   save and except, save the necessity, saving, scout, set apart,
   set aside, shave, shear, shove away, spare, spurn, stamp out,
   strike off, strip, strip off, suspend, take off, take out, than,
   throw away, throw out, truncate, turn away, turn out, unless,
   unless that, waive, were it not, wipe out, without, yet