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 ==