Which word means to free from deception or error, setting right in ideas or thinking?

The term "disabuse" specifically refers to the action of freeing someone from misconceptions or false beliefs, effectively correcting their understanding or ideas. When someone is disabused, they are shown the truth and are led away from being misled or deceived. This word captures the essence of correcting errors in thought or perception, making it the ideal choice in the context of the question.

In contrast, the other options have different meanings. "Discourse" relates to written or spoken communication, "cogent" describes an argument that is clear and convincing but does not imply correcting a belief, and "enumerate" means to list or count one by one without any implication of correcting or clarifying ideas. Therefore, while those words may pertain to communication or clarity in different contexts, they do not encompass the concept of freeing someone from deception like "disabuse" does.