confuse

mistake one thing for another; "you are confusing me with the other candidate"; "I mistook her for the secretary"

be confusing or perplexing to; cause to be unable to think clearly; "These questions confuse even the experts"; "This question completely threw me"; "This question befuddled even the teacher"

cause to feel embarrassment; "The constant attention of the young man confused her"

assemble without order or sense; "She jumbles the words when she is supposed to write a sentence"

make unclear, indistinct, or blurred; "Her remarks confused the debate"; "Their words obnubilate their intentions"