The Collaborative International Dictionary of English v.0.48:

Divaricate \Di*var"i*cate\, v. i. [imp. & p. p. Divaricated;
   p. pr. & vb. n. Divaricating.] [L. divaricatus, p. p. of
   divaricare to stretch apart; di- = dis- + varicare to
   straddle, fr. varicus straddling, fr. varus stretched
   outwards.]
   1. To part into two branches; to become bifid; to fork.
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   2. To diverge; to be divaricate. --Woodward.
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