Source : Webster's Revised Unabridged Dictionary (1913)

Vellicate \Vel"li*cate\, v. t. [imp. & p. p. {Vellicated}; p.
   pr. & vb. n. {Vellicating}.] [L. vellicatus, p. p. of
   vellicare to twitch, fr. vellere to pluck, pull.]
   To twitch; to cause to twitch convulsively.

         Convulsions, arising from something vellicating a nerve
         in its extremity, are not very dangerous. --Arbuthnot.