The earliest clear reference to the Avar ethnonym comes from Priscus the Rhetor (died after 472 AD).
Priscus recounts that, c. 463, the Šaragurs, Onogurs and Ogurs were attacked by the Sabirs, who had been attacked by the Avars.
In turn, the Avars had been driven off by people fleeing "man-eating griffins" coming from "the ocean" (Priscus Fr 40).
Whilst Priscus' accounts provide some information about the ethno-political situation in the Don-Kuban-Volga region after the demise of the Huns, no unequivocal conclusions can be reached.
Denis Sinor has argued that whoever the "Avars" referred to by Priscus were, they differed from the Avars who appear a century later, during the time of Justinian (who reigned from 527 to 565).

The next author to discuss the Avars, Menander Protector, appeared during the 6th century, and wrote of Göktürk embassies to Constantinople in 565 and 568 AD.
The Turks appeared angry at the Byzantines for having made an alliance with the Avars, whom the Turks saw as their subjects and slaves.
Turxanthos, a Turk prince, calls the Avars "Varchonites" and "escaped slaves of the Turks", who numbered "about 20 thousand" (Menander Fr 43).

Many more, but somewhat confusing, details come from Theophylact Simocatta, who wrote c. 629, describing the final two decades of the 6th century.
In particular, he claims to quote a triumph letter from the Turk lord Tamgan:
For this very Chagan had in fact outfought the leader of the nation of the Abdali (I mean indeed, of the Hephthalites, as they are called), conquered him, and assumed the rule of the nation.

Then he ... enslaved the Avar nation.

But let no one think that we are distorting the history of these times because he supposes that the Avars are those barbarians neighbouring on Europe and Pannonia, and that their arrival was prior to the times of the emperor Maurice.
For it is by a misnomer that the barbarians on the Ister have assumed the appellation of Avars; the origin of their race will shortly be revealed.

So, when the Avars had been defeated (for we are returning to the account) some of them made their escape to those who inhabit Taugast.
Taugast is a famous city, which is a total of one thousand five hundred miles distant from those who are called Turks, ... Others of the Avars, who declined to humbler fortune because of their defeat, came to those who are called Moukri; this nation is the closest neighbour to the men of Taugast;
Then the Chagan embarked on yet another enterprise, and subdued all the Ogur, which is one of the strongest tribes on account of its large population and its armed training for war.
These make their habitations in the east, by the course of the river Til, which Turks are accustomed to call Melas.
The earliest leaders of this nation were named Var and Chunni; from them some parts of those nations were also accorded their nomenclature, being called Var and Chunni.

Then, while the emperor Justinian was in possession of the royal power, a small section of these Var and Chunni fled from that ancestral tribe and settled in Europe.
These named themselves Avars and glorified their leader with the appellation of Chagan.
Let us declare, without departing in the least from the truth, how the means of changing their name came to them.
 ...
When the Barsils, Onogurs, Sabirs, and other Hun nations in addition to these, saw that a section of those who were still Var and Chunni had fled to their regions, they plunged into extreme panic, since they suspected that the settlers were Avars.
For this reason they honoured the fugitives with splendid gifts and supposed that they received from them security in exchange.


Then, after the Var and Chunni saw the well-omened beginning to their flight, they appropriated the ambassadors' error and named themselves Avars: for among the Scythian nations that of the Avars is said to be the most adept tribe.
In point of fact even up to our present times the Pseudo-Avars (for it is more correct to refer to them thus) are divided in their ancestry, some bearing the time-honoured name of Var while others are called C
The earliest clear reference to the Avar ethnonym comes from Priscus the Rhetor (died after 472 AD). Priscus recounts that, c. 463, the Šaragurs, Onogurs and Ogurs were attacked by the Sabirs, who had been attacked by the Avars. In turn, the Avars had been driven off by people fleeing "man-eating griffins" coming from "the ocean" (Priscus Fr 40). Whilst Priscus' accounts provide some information about the ethno-political situation in the Don-Kuban-Volga region after the demise of the Huns, no unequivocal conclusions can be reached. Denis Sinor has argued that whoever the "Avars" referred to by Priscus were, they differed from the Avars who appear a century later, during the time of Justinian (who reigned from 527 to 565).
The next author to discuss the Avars, Menander Protector, appeared during the 6th century, and wrote of Göktürk embassies to Constantinople in 565 and 568 AD. The Turks appeared angry at the Byzantines for having made an alliance with the Avars, whom the Turks saw as their subjects and slaves. Turxanthos, a Turk prince, calls the Avars "Varchonites" and "escaped slaves of the Turks", who numbered "about 20 thousand" (Menander Fr 43).
Many more, but somewhat confusing, details come from Theophylact Simocatta, who wrote c. 629, describing the final two decades of the 6th century. In particular, he claims to quote a triumph letter from the Turk lord Tamgan:
For this very Chagan had in fact outfought the leader of the nation of the Abdali (I mean indeed, of the Hephthalites, as they are called), conquered him, and assumed the rule of the nation.
Then he ... enslaved the Avar nation.
But let no one think that we are distorting the history of these times because he supposes that the Avars are those barbarians neighbouring on Europe and Pannonia, and that their arrival was prior to the times of the emperor Maurice. For it is by a misnomer that the barbarians on the Ister have assumed the appellation of Avars; the origin of their race will shortly be revealed.
So, when the Avars had been defeated (for we are returning to the account) some of them made their escape to those who inhabit Taugast. Taugast is a famous city, which is a total of one thousand five hundred miles distant from those who are called Turks, ... Others of the Avars, who declined to humbler fortune because of their defeat, came to those who are called Moukri; this nation is the closest neighbour to the men of Taugast;
Then the Chagan embarked on yet another enterprise, and subdued all the Ogur, which is one of the strongest tribes on account of its large population and its armed training for war. These make their habitations in the east, by the course of the river Til, which Turks are accustomed to call Melas. The earliest leaders of this nation were named Var and Chunni; from them some parts of those nations were also accorded their nomenclature, being called Var and Chunni.
Then, while the emperor Justinian was in possession of the royal power, a small section of these Var and Chunni fled from that ancestral tribe and settled in Europe. These named themselves Avars and glorified their leader with the appellation of Chagan. Let us declare, without departing in the least from the truth, how the means of changing their name came to them. ...
When the Barsils, Onogurs, Sabirs, and other Hun nations in addition to these, saw that a section of those who were still Var and Chunni had fled to their regions, they plunged into extreme panic, since they suspected that the settlers were Avars. For this reason they honoured the fugitives with splendid gifts and supposed that they received from them security in exchange.

Then, after the Var and Chunni saw the well-omened beginning to their flight, they appropriated the ambassadors' error and named themselves Avars: for among the Scythian nations that of the Avars is said to be the most adept tribe. In point of fact even up to our present times the Pseudo-Avars (for it is more correct to refer to them thus) are divided in their ancestry, some bearing the time-honoured name of Var while others are called C
Pannonian Avars