Japanese

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For pronunciation and definitions of ならく – see the following entry.
奈落
[noun] [from circa 1060] (Buddhism) hell
[noun] [from 985] falling into hell
[noun] [from 1694] the absolute bottom, the last straw, the worst that something can become
[noun] [from 1800] (theater) a theater basement, a trap cellar (under the stage)
[noun] [from ???] (video games, platform games) bottomless pit; an invisible place below the playable area that usually kills the game characters falling into it
Alternative spellings
那落, 捺落
(This term, ならく (naraku), is the hiragana spelling of the above term.)