'precisely-held' originates from the combination of 'precisely' and 'held'. 'Precisely' comes from Latin 'precisus', meaning 'cut off, brief', and 'held' is the past participle of 'hold', from Old English 'healdan', meaning 'to grasp, to keep'.

'Precisely' evolved from Latin 'precisus' through Old French 'precis', and 'held' evolved from Old English 'healdan'.

Initially, 'precisely' meant 'cut off, brief', but over time it evolved to mean 'exactly'. 'Held' has largely retained its original meaning of 'to grasp or keep'.