The Collaborative International Dictionary of English v.0.48:

Insult \In*sult"\, v. t. [imp. & p. p. Insulted; p. pr. & vb.
   n. Insulting.] [F. insulter, L. insultare, freq. fr.
   insilire to leap into or upon; pref. in- in, on + salire to
   leap. See Salient.]
   [1913 Webster]
   1. To leap or trample upon; to make a sudden onset upon.
      [Obs.] --Shak.
      [1913 Webster]

   2. To treat with abuse, insolence, indignity, or contempt, by
      word or action; to abuse; as, to call a man a coward or a
      liar, or to sneer at him, is to insult him.
      [1913 Webster]