Source : Webster's Revised Unabridged Dictionary (1913)

Gird \Gird\, v. t. [imp. & p. p. {Girt}or {Girded}; p. pr. & vb.
   n. {Girding}.] [OE. girden, gurden, AS. gyrdan; akin to OS.
   gurdian, D. gorden, OHG. gurten, G. g["u]rten, Icel. gyr?a,
   Sw. gjorda, Dan. giorde, Goth. biga['i]rdan to begird, and
   prob. to E. yard an inclosure. Cf. {Girth}, n. & v., {Girt},
   v. t.]
   1. To encircle or bind with any flexible band.

   2. To make fast, as clothing, by binding with a cord, girdle,
      bandage, etc.

   3. To surround; to encircle, or encompass.

            That Nyseian isle, Girt with the River Triton.
                                                  --Milton.

   4. To clothe; to swathe; to invest.

            I girded thee about with fine linen.  --Ezek. xvi.
                                                  10.

            The Son . . . appeared Girt with omnipotence.
                                                  --Milton.

   5. To prepare; to make ready; to equip; as, to gird one's
      self for a contest.

            Thou hast girded me with strength.    --Ps. xviii.
                                                  39.

   {To gird on}, to put on; to fasten around or to one securely,
      like a girdle; as, to gird on armor or a sword.

            Let not him that girdeth on his harness boast
            himself as he that putteth it off.    --1 Kings xx.
                                                  11.

   {To gird up}, to bind tightly with a girdle; to support and
      strengthen, as with a girdle.

            He girded up his loins, and ran before Ahab. --1
                                                  Kings xviii.
                                                  46.

            Gird up the loins of your mind.       --1 Pet. i.
                                                  13.

   {Girt up}; prepared or equipped, as for a journey or for
      work, in allusion to the ancient custom of gathering the
      long flowing garments into the girdle and tightening it
      before any exertion; hence, adjectively, eagerly or
      constantly active; strenuous; striving. ``A severer, more
      girt-up way of living.'' --J. C. Shairp.

Girt \Girt\, v. t. [imp. & p. p. {Girted}; p. pr. & vb. n.
   {Girting}.] [From {Girt}, n., cf. {Girth}, v.]
   To gird; to encircle; to invest by means of a girdle; to
   measure the girth of; as, to girt a tree.

         We here create thee the first duke of Suffolk, And girt
         thee with the sword.                     --Shak.

Girt \Girt\,
   imp. & p. p. of {Gird}.

Girt \Girt\, a. (Naut.)
   Bound by a cable; -- used of a vessel so moored by two
   anchors that she swings against one of the cables by force of
   the current or tide.

Girt \Girt\ (g[~e]rt), n.
   Same as {Girth}.

Source : WordNet®

girt
     See {gird}

gird
     v 1: prepare oneself for a military confrontation; "The U.S. is
          girding for a conflict in the Middle East"; "troops are
          building up on the Iraqui border" [syn: {arm}, {build up},
           {fortify}] [ant: {disarm}]
     2: encircle or bind; "Trees girded the green fields" [syn: {girth},
         {girt}, {begird}]
     3: put a girdle on or around; "gird your loins" [syn: {girdle}]
     4: bind with something round or circular [syn: {encircle}]
     [also: {girt}]

girt
     v : encircle or bind; "Trees girded the green fields" [syn: {girth},
          {begird}, {gird}]