D defs.my
Entry 3 senses Webster, 1913

Unhinge

/ən-hĭnj'/ · Un·hinge · IPA /ʌnˈhɪnd͡ʒ/
01 v. t. To take from the hinges; as, to unhinge a door.
  1. 1.
    To take from the hinges; as, to unhinge a door.
  2. 2.
    To displace; to unfix by violence.
  3. 3.
    To render unstable or wavering; to unsettle; as, to unhinge one's mind or opinions; to unhinge the nerves.
    “Why should I then unhinge my brains, ruin my mind?” South.
    “His sufferings, nay the revolutions of his fate, had not in the least unhinged his mind.” Walpole.