'deformity' originates from Latin, specifically the word 'deformitas,' where 'de-' meant 'down from' and 'forma' meant 'shape or form.'

'deformitas' transformed into the Old French word 'deformité,' and eventually became the modern English word 'deformity' through Middle English.

Initially, it meant 'disfigurement or ugliness,' but over time it evolved into its current meaning of 'abnormal shape or form.'