disaccustom

英 [dɪsə'kʌstəm] 美[,dɪsə'kʌstəm]

disaccustom (v.): late 15c., from Old French desacostumer "render unfamiliar" (Modern French désaccoutumer), from des- (see dis-) + acostumer (see accustom). Related: Disaccustomed.