Wintergreen

The term "wintergreen" historically referred to plants that remain green through the winter, for which we use the word "evergreen" today. Gaultheria wintergreens, shrubs, contain the oil used to make wintergreen mint flavoring, used in chewing gum, toothpaste, and even root beer.

Used as a name, Wintergreen is an unusual elaboration of Winter, well-suited for a girl or a boy.