'exactly-confirmed' originates from the combination of 'exactly' and 'confirmed', where 'exactly' means 'in a precise manner' and 'confirmed' means 'validated or verified'.

'exactly' and 'confirmed' have been used separately in English since the 14th century, and their combination into 'exactly-confirmed' is a modern usage to emphasize precision in validation.

Initially, 'exactly' and 'confirmed' were used separately, but their combination emphasizes a higher degree of certainty in modern usage.