'exclusivism' originates from Latin, specifically the word 'excludere,' where 'ex-' meant 'out' and 'claudere' meant 'to close.'

'excludere' transformed into the French word 'exclusif,' and eventually became the modern English word 'exclusive' through Middle English.

Initially, it meant 'to shut out or exclude,' but over time it evolved into its current meaning of 'the practice of excluding others.'