According to
Mongolian historians, the name derives from the words "khun" (swan) and "ard" (people; lit. tribe of the swan). The swan is one of the totems of
Mongolian peoples, such as the
Buryats. The name of this tribe first appeared in paragraph 61 of the
Secret History of the Mongols in the form "ongirad". The ethnonym "Khonggirat (Hungirat)" shares a common origin with the
Buryat ethnonym
Khongoduurs. G. R. Galdanova identifies the ethnonym "khongodor" with the medieval "hungirat", due to the possible transposition of "-rat" and "-dor". S. P. Baldayev believed the ethnonym derived from
khon — "noble bird" and "goodor" — "chicks of a noble bird". According to D. S. Dugarov, the basis were the Turkic "khun/khon (kun)" — "sun" and "khuba" — "swan", carried by remnants of the once powerful
Xiongnu. Sh. R. Tsydenzhapov proposed that this ethnonym derived from the swan totem "khun" during the Xiongnu era, with its modern phonetic form developed from "khun" — "swan". B. Z. Nanzatov compares the
Mongolian word "khongor" with the
Old Turkic "qoŋur". According to his theory, the ethnonyms "khonggirat,
Khongoduurs, konyrat" all derive from the Turko-Mongolian term "khongor" ~ "qoŋur", denoting an animal's coat color — specifically reddish, chestnut, brown, or dun, as well as buckskin and light reddish.{{cite book |author= Kruchkin Yu. N. Another folk etymology suggests the tribal name derived from "Qoŋyr" and "At", meaning "brown horse" in
Turkic. According to Ayuudain Ochir, the ethnonym "khongirad, khonkhirad, khonkhereyed" derived, like the ethnonym
Kerait (khereyed, khereid), from the name of the raven totem.
Mongols call one species of large raven "khon kheree". ==Origin==