Auscii
The Auscii or Ausci were an Aquitani tribe dwelling around present-day Auch during the Iron Age. Alongside the Tarbelli, they were one of the most powerful peoples of Aquitania. Name. They are mentioned as "Ausci" by Caesar (mid-1st c. BC), Pliny (1st c. AD) and Pomponius Mela (mid-1st c. AD), and as "Au̓skíois" (Αὐσκίοις) by Strabo (early 1st c. AD). The ethnonym "Auscii" may be related to the prefix "eusk"-, meaning 'Basque' in the Basque language ("euskara"). The city of Auch, attested as "civitas Auscius" in the early 4th century AD, is named after the tribe. Geography. Their  territory was located north of the Onobrisates, west of the Cambolectri and Volcae Tectosages, south of the Lactorates, west of the Atures. The chief town of the Auscii was known as Elimberrum (modern Auch), whose name can be compared to the Basque "ili-berri" ('new town'). Culture. It is believed that the Auscii spoke a form or dialect of the Aquitanian language, a precursor of the Basque language.