Plural of 'festella'; small or diminutive festivals or feast-related architectural elements in Latin terminology.
From Latin 'festella,' a diminutive form of 'festa,' with the '-ae' plural ending; rarely used except in specialized scholarly or ecclesiastical contexts.
This word barely survives in English—it's so specialized that you'll only find it in medieval Latin texts or academic papers about church architecture, making it one of the rarest words in the English language.
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