Search Result for "disorientate": 
Wordnet 3.0

VERB (1)

1. cause to be lost or disoriented;
[syn: disorient, disorientate]

The Collaborative International Dictionary of English v.0.48:

Disorientate \Dis*o"ri*en*tate\, v. t. To turn away from the east, or (figuratively) from the right or the truth. [R.] [1913 Webster]
WordNet (r) 3.0 (2006):

disorientate v 1: cause to be lost or disoriented [syn: disorient, disorientate] [ant: orient, orientate]