'predisposition' originates from Latin, specifically the word 'praedispositio', where 'prae-' meant 'before' and 'dispositio' meant 'arrangement'.

'praedispositio' transformed into the French word 'prédisposition', and eventually became the modern English word 'predisposition'.

Initially, it meant 'an arrangement made beforehand', but over time it evolved into its current meaning of 'a tendency or inclination'.