The Collaborative International Dictionary of English v.0.48:

Terrorize \Ter"ror*ize\, v. t. [Cf. F. terroriser.]
   To impress with terror; to coerce by intimidation.
   [1913 Webster]

         Humiliated by the tyranny of foreign despotism, and
         terrorized by ecclesiastical authority.  --J. A.
                                                  Symonds.
   [1913 Webster]

WordNet (r) 3.0 (2006):

terrorize
    v 1: coerce by violence or with threats [syn: terrorize,
         terrorise]
    2: fill with terror; frighten greatly [syn: terrify,
       terrorize, terrorise]