Sophistry

The use of fallacious arguments, especially with the intention of deceiving.

From Middle English safistre, soffistre, sofystry, sophestrie, sophestry, sophestrye, sophistre, sophistri, sophistrie, sophistry, sophistrye, sophystrye, from Old French sofisterie, sophistrie and Medieval Latin sophistria, Anglo-Latin sophestria, from Latin sophista, from Ancient Greek σοφιστής (sophistḗs, “wise man”), from σοφίζω (sophízō, “to be wise”), from σοφός (sophós, “wise”), equivalent to sophist +‎ -ry.

sophism