Cossack russian

• каза́к

  Cossack

• есау́л

  esaul, Cossack captain

• каза́чество

  the Cossacks

• запоро́жец

  Zaporozhian Cossack

• пласту́н

  private in Cossack infantry, Cossack infantryman

• уря́дник

  village constable, Cossack sergeant