[χάσμα] from a form of an obsolete primary χάω (to "gape" or "yawn"); a "chasm" or vacancy (impassable interval)
Usages throughout the bible
Luke 16:26
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And beside all this, between us and you there is a great gulf G5490 fixed: so that they which would pass from hence to you cannot; neither can they pass to us, that would come from thence.
