The Collaborative International Dictionary of English v.0.48:

Antiquate \An"ti*quate\, v. t. [L. antiquatus, p. p. of
   antiquare, fr. antiquus ancient.]
   To make old, or obsolete; to make antique; to make old in
   such a degree as to put out of use; hence, to make void, or
   abrogate.
   [1913 Webster]

         Christianity might reasonably introduce new laws, and
         antiquate or abrogate old one.           --Sir M. Hale.
   [1913 Webster]

WordNet (r) 3.0 (2006):

antiquate
    v 1: make obsolete or old-fashioned
    2: give an antique appearance to; "antique furniture" [syn:
       antique, antiquate]