The Collaborative International Dictionary of English v.0.48:

Tort \Tort\, n. [F., from LL. tortum, fr. L. tortus twisted,
   crooked, p. p. of torqure to twist, bend. See Torture.]
   1. Mischief; injury; calamity. [Obs.]
      [1913 Webster]

            That had them long opprest with tort. --Spenser.
      [1913 Webster]

   2. (Law) Any civil wrong or injury; a wrongful act (not
      involving a breach of contract) for which an action will
      lie; a form of action, in some parts of the United States,
      for a wrong or injury.
      [1913 Webster]

   Executor de son tort. See under Executor.

   Tort feasor (Law), a wrongdoer; a trespasser. --Wharton.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tort \Tort\, a.
   Stretched tight; taut. [R.]
   [1913 Webster]

         Yet holds he them with tortest rein.     --Emerson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

tort
    n 1: (law) any wrongdoing for which an action for damages may be
         brought [syn: tort, civil wrong]