The Collaborative International Dictionary of English v.0.48:

Wreathe \Wreathe\, v. t. [imp. Wreathed; p. p. Wreathed;
   Archaic Wreathen; p. pr. & vb. n. Wreathing.] [See
   Wreath, n.] [Written also wreath.]
   [1913 Webster]
   1. To cause to revolve or writhe; to twist about; to turn.
      [Obs.]
      [1913 Webster]

            And from so heavy sight his head did wreathe.
                                                  --Spenser.
      [1913 Webster]

   2. To twist; to convolve; to wind one about another; to
      entwine.
      [1913 Webster]

            The nods and smiles of recognition into which this
            singular physiognomy was wreathed.    --Sir W.
                                                  Scott.
      [1913 Webster]

            From his slack hand the garland wreathed for Eve
            Down dropped.                         --Milton.
      [1913 Webster]

   3. To surround with anything twisted or convolved; to
      encircle; to infold.
      [1913 Webster]

            Each wreathed in the other's arms.    --Shak.
      [1913 Webster]

            Dusk faces with withe silken turbants wreathed.
                                                  --Milton.
      [1913 Webster]

            And with thy winding ivy wreathes her lance.
                                                  --Dryden.
      [1913 Webster]

   4. To twine or twist about; to surround; to encircle.
      [1913 Webster]

            In the flowers that wreathe the sparkling bowl,
            Fell adders hiss.                     --Prior.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Wreathe \Wreathe\, v. i.
   To be intewoven or entwined; to twine together; as, a bower
   of wreathing trees. --Dryden.
   [1913 Webster]

WordNet (r) 3.0 (2006):

wreathe
    v 1: move with slow, sinuous movements
    2: decorate or deck with wreaths; "wreathe the grave site"
    3: form into a wreath [syn: wreathe, wind]