The quality or state of being beneficial; the capacity to produce good results or advantages.
From 'beneficial' (Latin 'beneficialis,' from 'beneficium,' benefit) combined with the suffix '-ness' (Old English 'ness,' indicating a state or quality). This creates an abstract noun describing the property itself.
English loves stacking suffixes—'beneficial' + 'ness' = 'beneficialness'—but we often prefer shorter synonyms like 'benefit' instead, showing how word choice reflects both precision and laziness in language.
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