[Истин]

niraya

lit. 'the downward-path', the nether or infernal world, usually translated by 'hell', is one of the 4 lower courses of existence (apāya).

The Buddhists are well aware that on account of the universal sway of impermanence a life in hell, just as in heaven, cannot last eternally, but will after exhaustion of the karma which has caused the respective form of rebirth, necessarily be followed again by a new death and a new rebirth, according to the stored-up karma.

http://www.palikanon.com/english/wtb/n_r/niraya.htm