The Collaborative International Dictionary of English v.0.48:

Domesticate \Do*mes"ti*cate\, v. t. [imp. & p. p.
   Domesticated; p. pr. & vb. n. Domesticating.] [LL.
   domesticatus, p. p. of domesticare to reside in, to tame. See
   Domestic, a.]
   1. To make domestic; to habituate to home life; as, to
      domesticate one's self.
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   2. To cause to be, as it were, of one's family or country;
      as, to domesticate a foreign custom or word.
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   3. To tame or reclaim from a wild state; as, to domesticate
      wild animals; to domesticate a plant.
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