'precisely' originates from Latin, specifically the word 'praecisus,' where 'prae-' meant 'before' and 'caedere' meant 'to cut.' 'Timed' comes from Old English 'tīma,' meaning 'time.'

'precisely' changed from the Latin word 'praecisus' and eventually became the modern English word 'precisely.' 'Timed' evolved from Old English 'tīma' to the modern English 'timed.'

Initially, 'precisely' meant 'cut short,' but over time it evolved into its current meaning of 'exactly.' 'Timed' has largely retained its original meaning related to 'time.'