Source : Webster's Revised Unabridged Dictionary (1913)

Twinkle \Twin"kle\, v. i. [imp. & p. p. {Twinkled}; p. pr. & vb.
   n. {Twinkling}.] [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.

            The owl fell a moping and twinkling.  --L' Estrange.