The Collaborative International Dictionary of English v.0.48:

Gird \Gird\, v. i.
   To gibe; to sneer; to break a scornful jest; to utter severe
   sarcasms.
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         Men of all sorts take a pride to gird at me. --Shak.
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The Collaborative International Dictionary of English v.0.48:

Gird \Gird\ (g[~e]rd), v. t. [imp. & p. p. Girtor 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[eth]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.
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   2. To make fast, as clothing, by binding with a cord, girdle,
      bandage, etc.
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   3. To surround; to encircle, or encompass.
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            That Nyseian isle,
            Girt with the River Triton.           --Milton.
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   4. To clothe; to swathe; to invest.
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            I girded thee about with fine linen.  --Ezek. xvi.
                                                  10.
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            The Son . . . appeared
            Girt with omnipotence.                --Milton.
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   5. To prepare; to make ready; to equip; as, to gird one's
      self for a contest.
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            Thou hast girded me with strength.    --Ps. xviii.
                                                  39.
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   To gird on, to put on; to fasten around or to one securely,
      like a girdle; as, to gird on armor or a sword.
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            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.
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            He girded up his loins, and ran before Ahab. --1
                                                  Kings xviii.
                                                  46.
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            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.
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The Collaborative International Dictionary of English v.0.48:

Gird \Gird\ (g[~e]rd), n. [See Yard a measure.]
   [1913 Webster]
   1. A stroke with a rod or switch; a severe spasm; a twinge; a
      pang.
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            Conscience . . . is freed from many fearful girds
            and twinges which the atheist feels.  --Tillotson.
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   2. A cut; a sarcastic remark; a gibe; a sneer.
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            I thank thee for that gird, good Tranio. --Shak.
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The Collaborative International Dictionary of English v.0.48:

Gird \Gird\, v. t. [See Gird, n., and cf. Girde, v.]
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   1. To strike; to smite. [Obs.]
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            To slay him and to girden off his head. --Chaucer.
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   2. To sneer at; to mock; to gibe.
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            Being moved, he will not spare to gird the gods.
                                                  --Shak.
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WordNet (r) 3.0 (2006):

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 Iraqi border" [syn: arm, build up,
         fortify, gird] [ant: demilitarise, demilitarize,
         disarm]
    2: put a girdle on or around; "gird your loins" [syn: girdle,
       gird]
    3: bind with something round or circular [syn: gird,
       encircle]

Moby Thesaurus II by Grady Ward, 1.0:

81 Moby Thesaurus words for "gird":
   band, bandage, beef up, begird, belt, belt in, bend, beset, bind,
   bind up, bolster, brace, brace up, bundle, buttress, case harden,
   chain, cinch, cincture, circle, confirm, dispose, do up,
   encincture, encircle, encompass, engird, ensphere, fleer, flout,
   forearm, fortify, gibe, girdle, girt, girth, harden, hem,
   invigorate, jeer, jest, lace, lash, leash, loop, nerve, prepare,
   prop, ready, refresh, reinforce, reinvigorate, restrengthen, ring,
   rope, round, shore up, sneer, splice, steel, stiffen, strap,
   strengthen, support, sustain, swaddle, swathe, temper, tie, tie up,
   toughen, truss, twine around, undergird, whet the knife, wire,
   wrap, wrap up, wreathe, wreathe around, zone