'immediate' originates from Latin, specifically the word 'immediatus,' where 'in-' meant 'not' and 'medius' meant 'middle.' 'Release' originates from Old French, specifically the word 'reles,' where 're-' meant 'back' and 'laisser' meant 'to let go.'

'Immediate' changed from the Latin word 'immediatus' and eventually became the modern English word 'immediate.' 'Release' transformed from the Old French word 'reles' and eventually became the modern English word 'release.'

Initially, 'immediate' meant 'without anything in between,' and this meaning has largely remained the same in modern usage. 'Release' initially meant 'to let go,' and this meaning has largely remained the same in modern usage.