черговий

Etymology
From.

Adjective

 * 1) next
 * 2) duty, on duty
 * 3) regular
 * 4)  another, yet another, just another, another routine, one more,  more, yet more, yet further
 * 1)  another, yet another, just another, another routine, one more,  more, yet more, yet further

Noun

 * 1) person on duty