The Collaborative International Dictionary of English v.0.48:

Doff \Doff\, v. i.
   To put off dress; to take off the hat.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Doff \Doff\, v. t. [imp. & p. p. Doffed; p. pr. & vb. n.
   Doffing.] [Do + off. See Do, v. t., 7.]
   1. To put off, as dress; to divest one's self of; hence,
      figuratively, to put or thrust away; to rid one's self of.
      [1913 Webster]

            And made us doff our easy robes of peace. -- Shak.
      [1913 Webster]

            At night, or in the rain,
            He dons a surcoat which he doffs at morn. --
                                                  Emerson.
      [1913 Webster]

   2. To strip; to divest; to undress.
      [1913 Webster]

            Heaven's King, who doffs himself our flesh to wear.
                                                  -- Crashaw.
      [1913 Webster]

WordNet (r) 3.0 (2006):

doff
    v 1: remove; "He doffed his hat"

Moby Thesaurus II by Grady Ward, 1.0:

38 Moby Thesaurus words for "doff":
   cast off, detach, disengage, douse, drop, free, liberate, loose,
   loosen, put off, release, remove, slip out of, step out of,
   take off, throw off, unbar, unbind, unbolt, unbuckle, unbutton,
   unchain, unclasp, undo, unfasten, unfetter, unglue, unlace,
   unlatch, unleash, unlock, unloose, unloosen, unstick, unstrap,
   untie, unwrap, weigh anchor