Showy or elegant clothes and decorations; fine or ornate articles, especially those worn as adornment.
From 'finery' (fine or showy things) plus '-ies' (plural). 'Finery' has been used since the 16th century to mean decorative ornaments and fancy clothing.
The word 'finery' originally meant decoration added to cloth, but it evolved to mean any fancy display—which is why it often carries a slightly sarcastic tone, as if to say 'look at all that unnecessary showing off.'
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