- (transitive) usually followed by of: to rid (oneself, another person, etc) of a mistaken or misguided idea; set right
WordReference Random House Learner's Dictionary of American English © 2015
to free (someone) from deception or error:Let me disabuse you of that foolish idea.
v.t., -bused, -bus•ing.
to free (a person) from deception or error.
- French désabuser. See dis-1, abuse