Karasuk languages, a hypothetical language family linking the Yeniseian languages and Burushaski
While Yeniseian has been demonstrated to be related to the Na-Dene languages of North America, as part of a newly named Dene–Yeniseian family, the relevant morphological correspondences between Na-Dene and Yeniseian have not been found in Burushaski.
If the Dené–Caucasian hypothesis, which attempts to link Basque, Burushaski, the North Caucasian families and other phyla, is correct, then the similarities to Basque may also be due to these influences, however indirect.
The Mir used to have the Burushaski title of Thum (also Tham or Thom), later changed to Mir.
There is a clear predominance of retroflexion in the Northwest (Nuristani, Dardic, Khotanese Saka, Burushaski), involving affricates, sibilants and even vowels (in Kalasha), compared to other parts of the subcontinent.