'precisely-changed' originates from the combination of 'precisely' and 'changed', where 'precisely' comes from Latin 'precisus', meaning 'cut off' or 'exact', and 'changed' from Old French 'changier', meaning 'to alter'.

'precisely' evolved from the Latin 'precisus' through Old French 'precis', and 'changed' from Old French 'changier', eventually forming the modern English term 'precisely-changed'.

Initially, 'precisely' meant 'exactly' and 'changed' meant 'altered', and together they convey the idea of being altered with exactness.