'impartial' originates from Middle French, specifically the word 'impartial,' where 'im-' meant 'not' and 'partial' meant 'biased or favoring one side.'

'impartial' changed from the Middle French word 'impartial' and eventually became the modern English word 'impartial.'

Initially, it meant 'not favoring one side,' and this meaning has largely remained the same in modern usage.