See bewilder in Webster's New World Roget's A-Z Thesaurus II
verb
To cause to be unclear in mind or intent:
addle, befuddle, confound, confuse, discombobulate, dizzy, fuddle, jumble, mix up, muddle, mystify, perplex, puzzle. (Informal) throw. Idiom: make one's head reel (or swim) (or whirl). See clear, feelings
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