'achromatize' originates from Greek, specifically the word 'achromatos,' where 'a-' meant 'without' and 'chroma' meant 'color.'

'achromatos' transformed into the English word 'achromatize,' and eventually became the modern English word 'achromatising' through the addition of the present participle suffix '-ing.'

Initially, it meant 'to make colorless,' and this meaning has largely remained the same in modern usage.