Proto-Dené-Caucasian roots
The Proto-Dené–Caucasian language is the hypothetical common ancestor of the Basque, Burushaski, North Caucasian, Sino-Tibetan, Yeniseian, Na-Dené and possibly also other languages of Eurasia and North America. The relationship among these languages and the existence of a Dene–Caucasian family is disputed by most linguists. Several remarks must be made: Other words. The majority of the word forms in the table represent reconstructions in the respective proto-languages, to wit, Proto-Basque, Proto-North Caucasian, Proto-Burushaski, Proto-Sino-Tibetan, Proto-Yeniseian and Proto-Na-Dené (here meant to include Haida). Nevertheless , especially in the cases of Na-Dené, North Caucasian and Sino-Tibetan, some expressions have not been attested in the whole family and can only be traced back to the individual intermediate daughter (proto-)languages. See the footnotes for details. As for Proto-Na-Dené, its reconstruction is still in its infancy but may soon be improved thanks to the recently finished dictionary of Haida. As above, /V/ means that the vowel in this position has not been successfully reconstructed yet,