The quality or state of being gorgeous; striking beauty, magnificence, or visual splendor.
From the adjective 'gorgeous' plus the abstract noun suffix '-ness', creating a noun that describes the state or quality of being gorgeous.
The '-ness' suffix is English's workhorse for turning feelings and qualities into countable things—'gorgeousness' lets you treat beauty as a concept you can point to and discuss, which is why this pattern appears in thousands of English abstract nouns.
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