The state or quality of being enraged; extreme anger or fury.
From 'enraged' + '-ness' (suffix creating abstract nouns from adjectives). Stacks multiple suffixes: enrage + -ed + -ness.
Adding '-ness' to 'enraged' creates an abstract noun, but it's so rare that most people would just say 'rage' or 'fury' instead—some words grammatically exist but practically never get used.
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