sophistry - vocabulary

  edgood  —  Grammar Tips

A false, tricky but plausible argument understood to be such by the speaker himself and intentionally used to deceive.
 . . . that phrase of mischievous sophistry, “all men are born free and equal.” This false and futile axiom, which has done, is doing, and will do so much harm to this fine country.

—Frances Trollope Domestic Manners of the Americans (1832)