Fairness

wiktionary

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From Middle English fairness, fæȝernesse, from Old English fæġernes(“fairness; beauty; pleasantness”), equivalent to fair +‎ -ness. Cognate with Old High German fagarnessi(“fairness”).

etymonline

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fairness (n.)

Old English fægernes "beauty;" see fair (adj.) + -ness. Meaning "even-handedness, impartiality" is from mid-15c. Meaning "lightness of complexion" is from 1590s.