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.]
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   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]