quality:correction, information:classification
Etymology

The name Hun is attested in classical European sources as Greek Οὖννοι (Ounnoi) and Latin Hunni or Chuni. John Malalas records their name as Οὖννα (Ounna). Another possible Greek variant may be Χοὖνοι (Khounoi), although this group's identification with the Huns is disputed. Classical sources also frequently use the names of older and unrelated steppe nomads instead of the name Hun, calling them Massagetae, Scythians, and Cimmerians, among other names.

The etymology of Hun is unclear. Various proposed etymologies generally assume at least that the names of the various Eurasian groups known as Huns are related. There have been a number of proposed Turkic etymologies, deriving the name variously from Turkic ön, öna (to grow), qun (glutton), kün, gün, a plural suffix "supposedly meaning 'people'", qun (force), and hün (ferocious). Maenchen-Helfen dismisses all of these Turkic etymologies as "mere guesses" and proposes an Iranian etymology, from a word akin to Avestan hūnarā (skill), hūnaravant- (skillful). He suggests that it may originally have designated a rank rather than an ethnicity. Robert Werner has advanced an etymology from Tocharian ku (dog), suggesting—as the Chinese called the Xiongnu dogs—that the dog was the totem animal of the Hunnic tribe. He also compares the name Massagetae, noting that the element saka in that name means dog. Others such as Harold Bailey, S. Parlato, and Jamsheed Choksy have argued that the name derives from an Iranian word akin to Avestan Ẋyaona, and was a generalized term meaning "hostiles, opponents". Christopher Atwood dismisses this possibility on phonological and chronological grounds. While not arriving at an etymology per se, Atwood derives the name from the Ongi River in Mongolia, which was pronounced the same as, or similarly to, the name Xiongnu, and suggests that it was originally a dynastic name rather than an ethnic name.