past tense of 'disabuse': freed someone from a false belief or incorrect understanding.
The past tense of 'disabuse,' formed regularly by adding '-ed.' The word 'disabuse' comes from 'dis-' (reverse) plus 'abuse' (to use wrongly), literally meaning to stop using something incorrectly or to stop being deceived.
'I was disabused of the notion that...' is the classic phrase for admitting you were wrong about something—and it's much more elegant and less embarrassing than just saying 'I was mistaken'!
Complete word intelligence in one call. Free tier — 50 lookups/day.