Nuptials

google

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late 15th century: from Old French, or from Latin nuptialis, from nuptiae ‘wedding’, from nubere ‘to wed’; related to nubile.

wiktionary

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From nuptial, [1] borrowed from Latin nūptiālis(“pertaining to marriage”), from nūptiae(“wedding”) (also plural only), from nūpta, from nūbō(“to marry, to take as husband”), from Proto-Indo-European *sneubho-, *snewbʰ-(“to marry, wed”). [2]

The word is cognate with French noces and Italian nozze.

etymonline

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nuptials (n.)

"marriage, wedding," 1550s, plural of nuptial. Now always plural, but Shakespeare uses the singular.