Polyglot: Speaking or writing several languages: multilingual. The prefix poly comes from Greek and means "many" or "multi-." Glot comes from the Greek term glōtta, meaning "language" or "tongue." (Glōtta is also the source of glottis, the word for the space between the vocal cords.)
The French word étiquette means "ticket" or "label attached to something for identification." In 16th-century Spain, the French word was borrowed (and altered to etiqueta) to refer to the written protocols describing orders of precedence and behavior demanded of those who appeared at court. Eventually, etiqueta came to be applied to the court ceremonies themselves as well as the documents which outlined the requirements for them. Interestingly, this then led to French speakers of the time attributing the second sense of "proper behavior" to their étiquette, and in the middle of the 18th century English speakers finally adopted both the word and the second meaning from the French