Source : Webster's Revised Unabridged Dictionary (1913)

Quern \Quern\, n. [AS. cweorn, cwyrn; akin to D. kweern, OHG.
   quirn, Icel. kvern, Sw. qvarn, Dan. qu[ae]rn, Goth. qairnus
   (in asiluqa['i]rnus), Lith. q[`i]rnos, and perh. E. corn.]
   A mill for grinding grain, the upper stone of which was
   turned by hand; -- used before the invention of windmills and
   watermills. --Shak.

         They made him at the querne grind.       --Chaucer.

Source : WordNet®

quern
     n : a primitive stone mill for grinding corn by hand