'disconcert' originates from French, specifically the word 'déconcerter,' where 'dé-' meant 'apart' and 'concerter' meant 'to bring together.'

'déconcerter' transformed into the English word 'disconcert,' and eventually became the modern English word 'disconcerted.'

Initially, it meant 'to disturb the arrangement,' but over time it evolved into its current meaning of 'to unsettle or confuse.'