Plural of bacchanalia; multiple instances of wild, drunken celebrations or festivals.
English plural of bacchanalia, formed by adding the -s suffix. Though bacchanalia is already Latin plural, English treats it as singular and adds -s for the English plural.
This shows a quirk of English: we borrowed a Latin plural word (bacchanalia) but then added another English -s, creating a double-plural that grammarians hate but people use anyway!
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