The Collaborative International Dictionary of English v.0.48:

Disaffect \Dis`af*fect"\, v. t. [imp. & p. p. Disaffected; p.
   pr. & vb. n. Disaffecting.]
   1. To alienate or diminish the affection of; to make
      unfriendly or less friendly; to fill with discontent and
      unfriendliness.
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            They had attempted to disaffect and discontent his
            majesty's late army.                  --Clarendon.
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   2. To disturb the functions of; to disorder.
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            It disaffects the bowels.             --Hammond.
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   3. To lack affection for; to be alienated from, or indisposed
      toward; to dislike. [Obs.] --Bp. Hall.
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