From The Collaborative International Dictionary of English v.0.48 :
Bemuse \Be*muse"\, v. t. To muddle, daze, or partially stupefy, as with liquor. [1913 Webster] A parson much bemused in beer. --Pope. [1913 Webster] BenFrom WordNet (r) 3.0 (2006) :
bemuse v 1: cause to be confused emotionally [syn: bewilder, bemuse, discombobulate, throw]