'immorality' originates from Latin, specifically the word 'immoralitas,' where 'im-' meant 'not' and 'moralitas' meant 'moral quality.'

'immoralitas' transformed into the French word 'immoralité,' and eventually became the modern English word 'immorality' through Middle English.

Initially, it meant 'lack of moral quality,' but over time it evolved into its current meaning of 'wickedness or corruption.'