Cause to disbelieve; teach someone the contrary of what he or she had learned earlier.

Roget 538: misinform, misteach^†, misdescribe^†, misinstruct^†, miscorrect^†; misdirect, misguide; pervert; put on a false scent, throw off the scent, throw off the trail; deceive etc. 545; mislead etc. (error) 495; misrepresent; lie etc. 544; ambiguas in vulgum spargere voces [Lat.] [Vergil]. propagandize, disinform.    render unintelligible etc. 519; bewilder etc. (uncertainty) 475; mystify etc. (conceal) 528; unteach.    [person or government agent who misteaches] propagandist.    ... show more

Cause to unlearn.

Dutch: afleren, afwennen, ontwennen