Noun
Arverni (plural Arverni)
(historical) A member of an ancient, powerful Gallic tribe living in what is now the Auvergne region of France, who opposed the Romans on several occasions.
Caesar confronted a large army led by a Suevic King named Ariovistus in 58 BC who had been settled for some time in Gaul already, at the invitation of the Gaulish Arverni and Sequani as part of their war against the Aedui. Source: Internet
Even the Aedui, their most faithful supporters, threw in their lot with the Arverni, but the ever-loyal Remi (best known for its cavalry) and Lingones sent troops to support Caesar. Source: Internet