kvern
Kvern is a Norwegian term for a device used to grind grain into flour. It typically consists of two circular stone discs: a stationary lower bedstone and a rotating upper runner stone. Grist placed between the stones is ground by the friction as the upper stone turns, and the flour is drawn away from the edge of the stones.
Traditional forms include håndkvern, a hand-powered mill whose upper stone is turned by a handle, and vannkvern,
Etymology and cognates: The Norwegian kvern is cognate with the English word quern and other Germanic equivalents,
Historical and cultural context: Querns and similar two-stone mills were central to food production in agrarian