'intentionally-proven' originates from the combination of 'intentionally' and 'proven', where 'intentionally' comes from Latin 'intentio' meaning 'a stretching out' and 'proven' from Latin 'probare' meaning 'to test or prove'.

'intentionally' changed from the Latin word 'intentio' and 'proven' from 'probare', eventually becoming the modern English term 'intentionally-proven'.

Initially, 'intentionally' meant 'with intention or purpose', and 'proven' meant 'tested or verified'. Together, they evolved to mean 'deliberately demonstrated'.