The quality or state of being complimentary; the extent to which something expresses praise or appreciation.
From complimentary plus the noun-forming suffix -ity (from Latin -itas). This suffix creates abstract nouns expressing the essential nature of an adjective.
This noun is layered with affixes (compliment + -ary + -ity), showing how English can stack morphemes to create more formal, abstract concepts. It's the kind of word you'd see in academic writing but almost never in everyday speech—proof that formality and complexity are linked.
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