The Collaborative International Dictionary of English v.0.48:

Twinkle \Twin"kle\ (tw[i^][ng]"k'l), v. i. [imp. & p. p.
   Twinkled (tw[i^][ng]"k'ld); p. pr. & vb. n. Twinkling
   (tw[i^][ng]"kl[i^]ng).] [OE. twinklen, AS. twinclian; akin to
   OE. twinken to blink, wink, G. zwinken, zwinkern, and perhaps
   to E. twitch.]
   1. To open and shut the eye rapidly; to blink; to wink.
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            The owl fell a moping and twinkling.  --L' Estrange.
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   2. To shine with an intermitted or a broken, quavering light;
      to flash at intervals; to sparkle; to scintillate.
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            These stars do not twinkle when viewed through
            telescopes that have large apertures. --Sir I.
                                                  Newton.
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            The western sky twinkled with stars.  --Sir W.
                                                  Scott.
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