"Na-Dene (/\u02CCn\u0251\u02D0d\u0268\u02C8ne\u026A/; also Nadene, Na-Den\u00E9, Athabaskan\u2013Eyak\u2013Tlingit, Tlina\u2013Dene) is a Native American language family that includes at least the Athabaskan languages, Eyak, and Tlingit languages. An old inclusion of Haida is now considered invalid.In February 2008 a proposal connecting Na-Dene (excluding Haida) to the Yeniseian languages of central Siberia into a Den\u00E9\u2013Yeniseian family was published and well received by a number of linguists."@en . . .