Plural of fairness; multiple instances or types of the quality of being fair, just, or equitable.
From 'fairness' (from 'fair' plus '-ness' nominalization suffix, from Old English 'fægr' plus 'ness') pluralized with '-es,' the standard ending for nouns already ending in '-ness.'
English can pluralize abstract nouns like 'fairness' to mean 'multiple instances of fairness' or 'fairnesses in different contexts'—it's grammatically unusual but perfectly understandable, showing how flexible English nominalization really is.
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