The quality or state of being foppish; the behavior and attitudes of someone excessively vain about their appearance.
From foppish + -ness (suffix forming abstract nouns from adjectives). This is one of the most productive noun-forming suffixes in English.
Foppishness and foppery both mean similar things, but foppishness feels more formal and abstract while foppery feels more concrete and observable—it's a subtle distinction that shows how English noun-forming suffixes create slight semantic nuances.
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