The Collaborative International Dictionary of English v.0.48:

Domify \Dom"i*fy\, v. t. [L. domus + -fy: cf. F. domifier.]
   1. (Astrol.) To divide, as the heavens, into twelve houses.
      See House, in astrological sense. [Obs.]
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   2. To tame; to domesticate. [Obs.] --Johnson.
      [1913 Webster]