nights - nocturnes? or nocturne?

Good news for Spanish and French. Like before, just add an "s". Like before, don't pronounce it in French.

Spanish noche becomes noches, pronounced "no-chase".

French nuit becomes nuits, pronounced "nwee".

Italian words ending in "e" end in "i" in the plural. So...

Italian notte becomes notti, pronounced "noh-tee".