The Collaborative International Dictionary of English v.0.48:

Previse \Pre*vise"\, v. t. [L. praevisus, p. p. of praevidere to
   foresee; prae before + videre to see. See Vision.]
   1. To foresee. [R.]
      [1913 Webster]

   2. To inform beforehand; to warn. --Ld. Lytton.
      [1913 Webster]

WordNet (r) 3.0 (2006):

previse
    v 1: warn in advance or beforehand; give an early warning; "I
         forewarned him of the trouble that would arise if he showed
         up at his ex-wife's house" [syn: forewarn, previse]
    2: realize beforehand [syn: anticipate, previse, foreknow,
       foresee]