一切經音義 50.129

50.129

那落迦（梵語也亦言那羅柯亦云泥羅夜舊言泥羅耶斯梵言楚夏耳此譯有四義一不可樂二不可救濟三闇冥四地獄經中言地獄者一義也所以仍置本名或言非行謂非法行處也）。

Naraka (Sanskrit; also pronounced narake or nilaye; the old rendering nilaye was merely a dialectal variation of the Sanskrit. This translation has four meanings: first, unjoyful; second, unrescuable; third, pitch-darkness; fourth, hell. What is called 'hell' in the sūtras is just one of these meanings, which is why the original name was retained; or it is called 'non-going', referring to a realm where improper conduct occurs).