The quality or state of being heavenly; the condition of being divine, blissful, or supremely peaceful.
From 'heavenly' + '-ness' (suffix creating abstract nouns). The '-ness' suffix comes from Old English 'nes' or 'ness,' used to derive nouns from adjectives expressing qualities or states. This is one of English's most productive noun-forming suffixes.
The '-ness' suffix is how English turns feelings into things—you can't touch 'happiness' or 'heavenliness,' but we can talk about them as real nouns! English speakers use '-ness' constantly to abstract qualities, making it arguably the most important suffix for creating new nouns.
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