The Collaborative International Dictionary of English v.0.48:

Intrust \In*trust"\, v. t. [imp. & p. p. Intrusted, p. pr. &
   vb. n. Intrusting.]
   To deliver (something) to another in trust; to deliver to
   (another) something in trust; to commit or surrender
   (something) to another with a certain confidence regarding
   his care, use, or disposal of it; as, to intrust a servant
   with one's money or intrust money or goods to a servant.

   Syn: To commit; consign; confide. See Commit.
        [1913 Webster]

WordNet (r) 3.0 (2006):

intrust
    v 1: confer a trust upon; "The messenger was entrusted with the
         general's secret"; "I commit my soul to God" [syn:
         entrust, intrust, trust, confide, commit]