'reassemble' originates from the prefix 're-' meaning 'again' and the verb 'assemble' from Latin 'assemblare', meaning 'to bring together'.

'assemblare' transformed into the Old French word 'assembler', and eventually became the modern English word 'assemble', with 're-' added to indicate repetition.

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