'monochromatically' originates from Greek, specifically the word 'monochromos,' where 'mono-' meant 'single' and 'chroma' meant 'color.'

'monochromos' transformed into the Medieval Latin word 'monochromatus,' and eventually became the modern English word 'monochromatic' and its adverb form 'monochromatically.'

Initially, it meant 'single color,' but over time it evolved into its current meaning of 'in a manner using one color.'