The story
- Proto-Germanic · inherited from*kwernōstainaz
- Old English · inherited fromcweornstān
- Middle English · inherited fromquerneston
- English todayquernstone
From quern + stone. From Middle English querneston, whernston, from Old English cweornstān, from Proto-Germanic *kwernōstainaz. Cognate with Old High German quirnstein and Old Norse kvernsteinn.
Etymology from Wiktionary, CC BY-SA 4.0.