'divulge' originates from Latin, specifically the word 'divulgare,' where 'di-' meant 'apart' and 'vulgare' meant 'to make common or public.'

'divulgare' transformed into the Old French word 'divulger,' and eventually became the modern English word 'divulge' through Middle English.

Initially, it meant 'to make something known to the public,' and this meaning has largely remained the same in modern usage.