Here's a breakdown of its etymology:
* Latin: *rufus* (red)
* Old French: *rouge* (red)
* English: *rouge* (red)
Interestingly, the word "rouge" has been used to describe red color for centuries, but it also specifically refers to a red cosmetic, especially for the cheeks and lips. This usage dates back to the 17th century.
So, the next time you hear someone using the word "rouge", remember that it's a word with a long and colorful history, literally!