'accurately-altered' originates from the combination of 'accurate' and 'altered', where 'accurate' comes from Latin 'accuratus', meaning 'done with care', and 'altered' from Latin 'alterare', meaning 'to change'.

'accurate' changed from the Latin word 'accuratus' and 'altered' from 'alterare', eventually forming the modern English compound adjective 'accurately-altered'.

Initially, 'accurate' meant 'done with care', and 'altered' meant 'to change'. Together, they evolved to mean 'modified with precision'.