“___ nuit” Crossword Clue

 The answer to the crossword clue "___ nuit" is NOIRE. This is a 5-letter word that means "black" in French. It is often used to describe the night sky or the color of darkness. The clue "___ nuit" is a pun on the French word for "night" (nuit).

Here are some other possible answers to the clue, although they are less common:

Noir

Obscur

Tenebreux

Sombre

Foncé

I hope this helps!