'orange' originates from Old French, specifically the word 'orenge', which came from the Arabic 'nāranj', derived from Persian 'nārang', and ultimately from Sanskrit 'nāraṅga', meaning 'orange tree'.

'nāraṅga' transformed into the Persian word 'nārang', then into Arabic 'nāranj', and eventually became the modern English word 'orange' through Old French 'orenge'.

Initially, it referred to the fruit of the orange tree, but over time it also came to denote the color of the fruit.