Dené–Caucasian languages
…Sino-Tibetan languages, Yeniseian languages and Burushaski in Asia; Na-Dené languages in North America; as well as Vasconic languages (including Basque) and North Caucasian languages from Europe. A narrower connection specifically between North American Na-Dené and Siberian Yeniseian (the Dené–Yeniseian…