'precisely' originates from Latin, specifically the word 'praecisus,' where 'prae-' meant 'before' and 'caedere' meant 'to cut.' 'Constructed' originates from Latin, specifically the word 'constructus,' where 'con-' meant 'together' and 'struere' meant 'to build.'

'precisely' changed from the Old French word 'precis' and eventually became the modern English word 'precisely.' 'Constructed' transformed from the Latin word 'constructus' and eventually became the modern English word 'constructed.'

Initially, 'precisely' meant 'cut short' but evolved to mean 'exactly.' 'Constructed' has largely retained its meaning of 'built or formed.'