'swiftly-sent' originates from the combination of 'swiftly,' meaning 'quickly,' and 'sent,' the past participle of 'send,' meaning 'to dispatch or deliver.'

'Swiftly' comes from Old English 'swift,' meaning 'quick or fast,' and 'sent' comes from Old English 'sendan,' meaning 'to send or dispatch.'

Initially, 'swiftly' meant 'quickly or rapidly,' and 'sent' meant 'dispatched.' The combined term 'swiftly-sent' retains the original meanings of both words.