'exactly-shaped' originates from the combination of 'exactly' and 'shaped', where 'exactly' comes from Latin 'exactus', meaning 'precisely', and 'shaped' from Old English 'sceapian', meaning 'to form'.

'exactly' evolved from the Latin 'exactus' through Middle English 'exact', and 'shaped' from Old English 'sceapian', eventually forming the modern English compound 'exactly-shaped'.

Initially, 'exactly' meant 'precisely' and 'shaped' meant 'to form', and together they have maintained the meaning of having a precise form.