What is "bituitus"

Bituitus (fl. 2nd century BCE) was a king of the Arverni, a Gaulish tribe living in what is now the Auvergne region of France. The Arverni were a powerful opponent of the Roman Republic during the 3rd and 2nd centuries under the leadership of Luernios, the father of Bituitus. In 121 BCE, Bituitus was defeated by the Roman general Fabius Maximus, ending the power of the Arverni in Mediterranean Gaul, or present-day southern France. The defeat of the Arverni resulted in the establishment of the Roman province of Gallia Narbonensis.