'inadvertently-verified' originates from the combination of 'inadvertently' and 'verified'. 'Inadvertently' comes from Latin 'inadvertentem', where 'in-' meant 'not' and 'advertentem' meant 'turning the mind to'. 'Verified' comes from Latin 'verificare', where 'verus' meant 'true' and 'facere' meant 'to make'.

'inadvertently' changed from the Latin word 'inadvertentem' and 'verified' from 'verificare', eventually combining in modern English to form 'inadvertently-verified'.

Initially, 'inadvertently' meant 'not turning the mind to', and 'verified' meant 'to make true'. Over time, they combined to mean 'accidentally confirmed'.