Tags: Language.
En (autonym: aiɲ˥˧; also known as Nùng Vên) is a Kra language spoken in Vietnam. Before its discovery in 1998 En language was undistinguished from Nùng which is a Central Tai language closely related to Zhuang. In the late 1990s Vietnamese linguist Hoàng Văn Ma had first recognized that it was not a Tai language ultimately leading to field work distinguishing En as a separate language.