1A native or inhabitant of Auvergne, a region and former province of central France.
In early use also: specifically a member of an ancient Gaulish people of this region (historical).
2The variety of the Occitan language particular to the Auvergne region.
Of or relating to Auvergne, its inhabitants, or the variety of the Occitan language particular to the region.
Mid 16th century. From Middle French, French auvergnat (adjective) of or relating to Auvergne, (noun) native or inhabitant of this region (ancient or modern), variety of the Occitan language spoken in this region from Auvergne, the name of a region of central France + -at, of uncertain origin.