The quality or state of being blurry; lack of clear focus or sharp definition.
From 'blurry' plus the noun-forming suffix '-ness,' which creates abstract nouns describing qualities. 'Blurry' itself derives from the verb 'blur,' which is onomatopoetic.
The '-ness' suffix is one of English's most productive tools—you can add it to almost any adjective and make an instant noun. This flexibility is why English speakers can coin new abstract concepts faster than speakers of more rigid languages.
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