The Collaborative International Dictionary of English v.0.48:

Vituperate \Vi*tu"per*ate\ (?; 277), v. t. [L. vituperatus, p.
   p. of vituperare to blame, vituperate; vitium a fault +
   parare to prepare. See Vice a fault, and Pare, v. t.]
   To find fault with; to scold; to overwhelm with wordy abuse;
   to censure severely or abusively; to rate.
   [1913 Webster]

WordNet (r) 3.0 (2006):

vituperate
    v 1: spread negative information about; "The Nazi propaganda
         vilified the Jews" [syn: vilify, revile, vituperate,
         rail]