An example of to disabuse is to tell children that they are not going to be having ice cream sundaes every night.
transitive verbdis·a·bused, dis·a·bus·ing, dis·a·bus·es
Origin of disabuseFrench désabuser : dés-, dis- + abuser, to delude (from Old French, to misuse; see abuse).
(third-person singular simple present disabuses, present participle disabusing, simple past and past participle disabused)
From dis- + abuse.