'imprecisely-altered' originates from the combination of 'imprecisely' and 'altered'. 'Imprecisely' comes from the Latin 'im-' meaning 'not' and 'precisus' meaning 'cut off, brief'. 'Altered' comes from the Latin 'alterare', meaning 'to change'.

'Imprecisely' evolved from the Latin 'imprecisus', while 'altered' evolved from the Latin 'alterare', through Old French 'alterer'.

Initially, 'imprecisely' meant 'not exact', and 'altered' meant 'changed'. Together, they convey a sense of change that lacks precision.