From Wiktionary, the free dictionary
From Volga Bulgar خان كوان (“Wednesday”). Literally means blood day.
юнкун • (junk̬un) (plural юнкунсем)
- Wednesday
- “юнкун”, in Электронлă сăмахсар[1] (overall work in Russian and Chuvash), 1996.
- Tekin, Talât (1988) Volga Bulgar kitabeleri ve Volga Bulgarcası[2], Ankara: Türk Tarih Kurumu Basımevi, →ISBN, pages 154-155