'disaggregate' originates from Latin, specifically the word 'disaggregare,' where 'dis-' meant 'apart' and 'aggregare' meant 'to add to a flock or group.'

'disaggregare' transformed into the French word 'désagréger,' and eventually became the modern English word 'disaggregate' through Middle English.

Initially, it meant 'to separate from a group,' and this meaning has largely remained the same in modern usage.