'impartially-evaluated' originates from the combination of 'impartial' and 'evaluate'. 'Impartial' comes from the Latin 'im-' meaning 'not' and 'partialis' meaning 'partial'. 'Evaluate' comes from the Latin 'ex-' meaning 'out' and 'valere' meaning 'to be worth'.

'Impartial' evolved from the Middle English 'impartial' and 'evaluate' from the French 'évaluer'.

Initially, 'impartial' meant 'not partial' and 'evaluate' meant 'to assess worth'. The combined term 'impartially-evaluated' retains these meanings in modern usage.