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]

Moby Thesaurus II by Grady Ward, 1.0:

70 Moby Thesaurus words for "wreathe":
   band, bead, begird, bejewel, belt, belt in, beribbon, bespangle,
   braid, cincture, circle, coil, corkscrew, curl, diamond,
   encincture, encircle, engird, engrave, enlace, ensphere, entwine,
   feather, figure, filigree, flag, flounce, flower, garland, gem,
   gird, girdle, illuminate, interknit, interlace, intertie,
   intertissue, intertwine, intertwist, interweave, intort, jewel,
   knit, lace, loom, loop, mat, net, noose, paint, plait, pleach,
   plume, raddle, ribbon, ring, spangle, spiral, splice, tinsel,
   tissue, twill, twine, twine around, twist, wattle, weave, web,
   wreathe around, zone