The answer
'Gohanam' is derived from 'Gehenna' which is derived from the Hebrew, 'Ge-Hinnom', the Valley of Hinnom. The actual site is believed to be on the outskirts of Jerusalem where it was typically used to dispose of animals' carcasses, waste, and other impurities. This landfill of corruption was then burned. The Jews and also the New Testament and other Christian literature figuratively use this term to allocate an eternal abode of torment and punishment for the wicked from which also the term 'hell' emerged.
Answered by His Eminence Metropolitan Youssef (opens in a new tab)