'temporarily-kept' originates from the combination of 'temporary' and 'kept', where 'temporary' comes from Latin 'temporarius', meaning 'lasting for a time', and 'kept' is the past participle of 'keep', from Old English 'cēpan', meaning 'to seize, hold'.

'temporarius' transformed into the English word 'temporary', and 'cēpan' evolved into 'keep', eventually forming the modern English term 'temporarily-kept'.

Initially, 'temporary' meant 'lasting for a time', and 'kept' meant 'to hold'. Together, they evolved to mean 'kept for a short period of time'.