Grimm and Müllenhoff were the two great masters of Teutonic philology. Jacob Grimm stoutly maintained that Getae and Daci (Dacians) were identical with Goths and Danes. He had used the word "germanisch" only rarely, and employed more often the word "deutsch". In English the terms "German" (deutsch) and "Dutch" (niederländisch) have acquired in everyday speech a special signification, so that for the whole field the name "Teutonic" has been used.
The Gets ( Getae), closely related to the Dacians and said to be one and the same people, were inhabiting the banks of the lower Danube region and nearby plains and are first appearing in the 6th century BC. They were known as expert mounted archers and devotees of the deity Zalmoxis. Emperor Augustus’ scribe, Strabon notes that "they speak the same language as the Dacians".
Starting with Jordanes, who borrowed the Getic history for the Goths, because of the similarity of the names, Getae were considered to be the same with the migrating tribes called Goths. In the Middle Age, the Dacians and the Danes were considered one and the same people. A historian wrote in the eleventh century about "Dacia which is called today Denmark" and about its inhabitants, the "Goths" who had "many kings generously gifted with the knowledge of the admirable philosophies, as Zeuta and Dichineus as well as Zalmoxis and many others". But Dichineus is Dicineus as referred by Iordanes, a great Dacian priest and king of the kings. We can also observe that the name Dutch of the inhabitants of Holland has the same pronunciation as the Romanian word "Daci" designating the Dacians.
In Strabo, however, the Bessi are described as the fiercest of the independent Thracian tribes, dwelling on and around the Haemus range, and possessing the greater part of the area around that mountain chain.
Cassiodorus virtually invented the name Visigoth (from the Vesi Goths) in the late fifth century.
The king and the leading strata of the Goths who settled in Aquitaine called themselves Vesi, that is, the "good ones."
Bessi, From Wikipedia, the free encyclopedia
In Strabo, however, the Bessi are described as the fiercest of the independent Thracian tribes, dwelling on and around the Haemus range, and possessing the greater part of the area around that mountain chain.He calls them brigands among brigands and that they were addicted to plunder..
Towards the end of the 4th century AD, Nicetas the Bishop of Dacia brought the gospel to "those mountain wolves", the Bessi. Reportedly his mission was successful, and the worship of Dionysus and other Thracian gods was eventually replaced by Christianity.
A Thracian personal name Bessus (attested in Northern Montenegro along with other Thracian names such as Teres) is considered to have the same etymon as Bessi (Wilkes, 1982).
In the 11th century Strategikon text, Cecaumenos the Byzantine historian described the Vlachs south of the Danube (Aromanians) as being descendants of ancient thracian tribes one of them being the Bessi.