1. A place or state of torment or suffering.
2. The abode of condemned souls; hell.
[Late Latin, from Greek Geenna, from Hebrew gê' hinnōm, possibly short for gê' ben hinnōm, valley of the son of Hinnom, a valley south of Jerusalem : gê', valley of, bound form of gay', valley; see gyʾ in the Appendix of Semitic roots + hinnōm, personal name; see hnn in the Appendix of Semitic roots.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.