Chanyu

Chanyu (simplified Chinese: 单于; traditional Chinese: 單于; pinyin: Chányú) or Shanyu (Chinese: 善于), short for Chengli Gutu Chanyu (Chinese: 撐犁孤塗單于; pinyin: Chēnglí Gūtu Chányú), was the title used by the supreme rulers of Inner Asian nomads for eight centuries until superseded by the title "Khagan" in 402 CE.

It was later also used infrequently by the Chinese as a reference to Tujue leaders.

As for Chányú (單于), it is a "vast [and] great appearance" (廣大之貌).".

[4] L. Rogers and Edwin G. Pulleyblank argue that the title chanyu may be equivalent to the later attested title tarkhan, suggesting that the Chinese pronunciation was originally dān-ĥwāĥ, an approximation for *darxan.

[5] Linguist Alexander Vovin tentatively proposes a Yeniseian etymology for 撐犁孤塗單于, in Old Chinese pronunciation *treng-ri kwa-la dar-ɢwā, from four roots: **tɨŋgɨr- "heaven",[6][7] *kwala- "son, child", *dar "lower reaches of the Yenisei" or "north", and *qʌ̄j ~ *χʌ̄j "prince"; as a whole "Son of Heaven, Ruler of the North".