'reintegrate' originates from Latin, specifically the word 'reintegrare,' where 're-' meant 'again' and 'integrare' meant 'to make whole.'

'reintegrare' transformed into the French word 'réintégrer,' and eventually became the modern English word 'reintegrate' through Middle English.

Initially, it meant 'to make whole again,' and this meaning has largely remained the same in modern usage.