The Collaborative International Dictionary of English v.0.48:

Prepossess \Pre`pos*sess"\, v. t. [imp. & p. p. Prepossessed;
   p. pr. & vb. n. Prepossessing.]
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   1. To preoccupy, as ground or land; to take previous
      possession of. --Dryden.
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   2. To preoccupy, as the mind or heart, so as to preclude
      other things; hence, to bias or prejudice; to give a
      previous inclination to, for or against anything; esp., to
      induce a favorable opinion beforehand, or at the outset.
      [1913 Webster]

            It created him enemies, and prepossessed the lord
            general.                              --Evelyn.
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