Gehenna

Gehenna (Greek γέεννα), Gehinnom (Rabbinical Hebrew: גהנום/גהנם) and Yiddish Gehinnam, are terms derived from a place outside ancient Jerusalem known in the Hebrew Bible as the Valley of the Son of Hinnom (Hebrew: גֵיא בֶן־הִנֹּם or גיא בן-הינום); one of the two principal valleys surrounding the Old City.