unhinge \unhinge"\, v. t. 1st pref. un- + hinge.
   1913 webster
   1. to take from the hinges; as, to unhinge a door.
      1913 webster

   2. to displace; to unfix by violence. --blackmore.
      1913 webster

   3. to render unstable or wavering; to unsettle; as, to
      unhinge one's mind or opinions; to unhinge the nerves.
      1913 webster

            why should i then unhinge my brains, ruin my mind?
                                                  --south.
      1913 webster

            his sufferings, nay the revolutions of his fate, had
            not in the least unhinged his mind.   --walpole.
      1913 webster

unhinge
     v 1: disturb in mind or make uneasy or cause to be worried or
          alarmed; "she was rather perturbed by the news that her
          father was seriously ill" syn: perturb, disquiet, trouble,
           cark, distract, disorder
     2: remove the hinges from; "unhinge the door"
see also:
perturb disquiet trouble cark distract disorder 

34 moby thesaurus words for "unhinge":
   agitate, bother, craze, dement, derange, disarrange, disarticulate,
   disjoint, dislocate, disorder, displace, disquiet, distract,
   disturb, drive insane, drive mad, flurry, fluster, frenzy, luxate,
   mad, madden, make mad, perturb, send mad, shatter, sicken, turn,
   unbalance, unjoint, unseat, unsettle, untune, upset