polyglot

You've probably run across the prefix poly- before-it comes from Greek and means "many" or "multi-." But what about glot? That part of the word 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.) Polyglot itself entered English in the 17th century, both as an adjective and as a noun meaning "one who can write or speak several languages." You could call the Holy Roman Emperor Charles V a polyglot. He claimed that he addressed his horse only in German, he conversed with women in Italian and with men in French, but reserved Spanish for his talks with God.