Note 7 — Chapter I · THE ORIGINS OF RUSSIAN EXPANSION IN SIBERIA AND THE NATURAL CHARACTERISTICS OF THE COUNTRY
Richard Davey translation
‘Yermak,’ the millstone, was the nickname given to Vassil, son of Timothy, a tracker of the Volga, because he ground the corn for his party. He was not a Cossack by birth, but joined the Don Cossack pirates.—H. N.