The Collaborative International Dictionary of English v.0.48:

Shiver \Shiv"er\, v. i. [OE. chiveren, cheveren; of uncertain
   origin. This word seems to have been confused with shiver to
   shatter.]
   To tremble; to vibrate; to quiver; to shake, as from cold or
   fear.
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         Prometheus is laid
         On icy Caucasus to shiver.               --Swift.
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         The man that shivered on the brink of sin,
         Thus steeled and hardened, ventures boldly in.
                                                  --Creech.
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The Collaborative International Dictionary of English v.0.48:

Shiver \Shiv"er\, n. [OE. schivere, fr. shive; cf. G. schifer a
   splinter, slate, OHG. scivere a splinter, Dan. & Sw. skifer a
   slate. See Shive, and cf. Skever.]
   1. One of the small pieces, or splinters, into which a
      brittle thing is broken by sudden violence; -- generally
      used in the plural. "All to shivers dashed." --Milton.
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   2. A thin slice; a shive. [Obs. or Prov. Eng.] "A shiver of
      their own loaf." --Fuller.
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            Of your soft bread, not but a shiver. --Chaucer.
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   3. (Geol.) A variety of blue slate.
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   4. (Naut.) A sheave or small wheel in a pulley.
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   5. A small wedge, as for fastening the bolt of a window
      shutter.
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   6. A spindle. [Obs. or Prov. Eng.]
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The Collaborative International Dictionary of English v.0.48:

Shiver \Shiv"er\, v. t. (Naut.)
   To cause to shake or tremble, as a sail, by steering close to
   the wind.
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The Collaborative International Dictionary of English v.0.48:

Shiver \Shiv"er\, v. t. [imp. & p. p. Shivered; p. pr. & vb.
   n. Shivering.] [OE. schiveren, scheveren; cf. OD.
   scheveren. See Shiver a fragment.]
   To break into many small pieces, or splinters; to shatter; to
   dash to pieces by a blow; as, to shiver a glass goblet.
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         All the ground
         With shivered armor strown.              --Milton.
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The Collaborative International Dictionary of English v.0.48:

Shiver \Shiv"er\, v. i.
   To separate suddenly into many small pieces or parts; to be
   shattered.
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         There shiver shafts upon shields thick.  --Chaucer
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         The natural world, should gravity once cease, . . .
         would instantly shiver into millions of atoms.
                                                  --Woodward.
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The Collaborative International Dictionary of English v.0.48:

Shiver \Shiv"er\, n.
   The act of shivering or trembling.
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WordNet (r) 3.0 (2006):

shiver
    n 1: a reflex motion caused by cold or fear or excitement [syn:
         tremble, shiver, shake]
    2: an almost pleasurable sensation of fright; "a frisson of
       surprise shot through him" [syn: frisson, shiver,
       chill, quiver, shudder, thrill, tingle]
    v 1: tremble convulsively, as from fear or excitement [syn:
         shudder, shiver, throb, thrill]
    2: shake, as from cold; "The children are shivering--turn on the
       heat!" [syn: shiver, shudder]