the quality or state of being edgy; nervousness, tension, or daring unconventionality.
From 'edgy' plus '-ness' (Old English '-nesse'), a suffix that converts adjectives into abstract nouns describing qualities or states.
The '-ness' suffix is so common that we barely notice it, but it's responsible for hundreds of English nouns: happiness, sadness, quickness, edginess—it's a linguistic productivity powerhouse!
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