'reallocation' originates from the prefix 're-' meaning 'again' and the word 'allocation' from Latin 'allocare', where 'ad-' meant 'to' and 'locare' meant 'to place'.

'allocation' transformed from the Latin word 'allocare' and eventually became the modern English word 'allocation'.

Initially, it meant 'to place or assign something', but over time it evolved into its current meaning of 'redistributing or assigning resources again'.