unshackle

from The Collaborative International Dictionary of English v.0.48

Unshackle \Un*shac"kle\, v. t. [1st pref. un- + shackle.]
   To loose from shackles or bonds; to set free from restraint;
   to unfetter. --Addison.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

33 Moby Thesaurus words for "unshackle":
      discharge, emancipate, liberate, loose, loosen, manumit, release,
      unbar, unbind, unbolt, unbridle, unbuckle, uncage, unchain,
      unfetter, ungag, unhandcuff, unhobble, unlash, unlatch, unleash,
      unlock, unloose, unloosen, unmanacle, unmuzzle, unpen, unpinion,
      unstrap, untether, untie, untruss, unyoke

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