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"