consternate

from WordNet (r) 3.0 (2006)

consternate
    v 1: fill with anxiety, dread, dismay, or confusion; "After the
         terrorist attack, people look consternated"

from The Collaborative International Dictionary of English v.0.48

consternate \consternate\ v. t.
   to cause to be confused; confuse emotionally; to dismay.

   Syn: confuse, flurry, disconcert, put off, bewilder, bemuse,
        discombobulate, throw.
        [WordNet 1.5]