Which word means to confuse or befuddle; to disorient?

The word that means to confuse or befuddle; to disorient is "bewilder." This term specifically captures the essence of creating a state of perplexity or confusion in someone. When one is bewildered, they often feel lost or unsure about what to do next due to the complexity or ambiguity of a situation. It conveys a sense of being out of one's depth or feeling as if one cannot make sense of information or circumstances.

While "mislead" refers to causing someone to have a false impression or understanding, it does not necessarily imply confusion but rather a mistaken belief created through deception. "Disconcert," on the other hand, means to disturb the composure of someone; it carries a connotation of unsettling someone but doesn't fully encapsulate the broad sense of confusion implied by "bewilder." "Confound" can also mean to confuse or surprise, but it often has additional implications of baffling someone or mixing up elements in a way that creates difficulty in distinguishing them. Therefore, "bewilder" is the most accurate choice, aligning closely with the idea of causing disorientation and confusion.