'blue-violet' originates from the combination of the words 'blue' and 'violet', where 'blue' is derived from Old English 'blǣwen' and 'violet' from Latin 'viola'.

'blue' changed from Old English 'blǣwen' to the modern English 'blue', and 'violet' from Latin 'viola' to the modern English 'violet'.

Initially, 'blue' meant 'the color of the sky', and 'violet' referred to the flower, but over time they evolved to describe specific colors.