Source : Webster's Revised Unabridged Dictionary (1913)

Extort \Ex*tort"\, v. t. [imp. & p. p. {Extorted}; p. pr. & vb.
   n. {Extorting}.] [L. extortus, p. p. of extorquere to twist
   or wrench out, to extort; ex out + torquere to turn about,
   twist. See {Torsion}.]
   1. To wrest from an unwilling person by physical force,
      menace, duress, torture, or any undue or illegal exercise
      of power or ingenuity; to wrench away (from); to tear
      away; to wring (from); to exact; as, to extort
      contributions from the vanquished; to extort confessions
      of guilt; to extort a promise; to extort payment of a
      debt.

   2. (Law) To get by the offense of extortion. See {Extortion},
      2.

Extort \Ex*tort"\, v. i.
   To practice extortion. [Obs.] --Spenser.

Extort \Ex*tort"\, p. p. & a. [L. extortus. p. p.]
   Extorted. [Obs.] --Spenser.

Source : WordNet®

extort
     v 1: obtain through intimidation
     2: obtain by coercion or intimidation; "They extorted money
        from the executive by threatening to reveal his past to
        the company boss"; "They squeezed money from the owner of
        the business by threatening him" [syn: {squeeze}, {rack},
        {gouge}, {wring}]
     3: get or cause to become in a difficult or laborious manner
        [syn: {wring from}]