The History of the American Expedition Fighting the Bolsheviki / Campaigning in North Russia 1918-1919

Here are the definitions of several unfamiliar (to me) words.
batmen: Soldier assigned to an officer as a servant.
batushka: Village priest.
drosky: Cart
felcher: Second-rate medical student or anyone with some medical knowledge.
hors de combat: Out of the fight; disabled; not able to fight.
junker: Aristocratic Prussian landholder devoted to militarism and authoritarianism, providing the German military forces with many of its officers.
knout: Whip with a lash of leather thongs, formerly used in Russia for flogging criminals. To flog with the knout.
mashie nib: Mashie-Niblick (mah-she nib-lik)—Wood shafted golf club with about the same loft and length as today’s seven iron.
poilus: French common soldier, especially in World War I.
verst: Russian measure of distance; 3500 feet, 0.6629 mile, 1.067 km.
viand: Choice or delicate food.