quern (n.) Look up quern at Dictionary.com
Old English cweorn "hand-mill, mill," from PIE root *gwern- (cf. Old Norse kvern, Old Frisian quern, Old High German quirn, Gothic quirnus; Sanskrit grava "crushing stone;" Lithuanian girna "millstone," girnos "hand mills;" Old Church Slavonic zrunuvi "mills;" Welsh brevan "hand mill").