Hades

"the region of departed spirits of the lost" (but including the blessed dead in periods preceding the ascension of Christ). It has been thought by some that the word etymologically meant "the unseen" (from a, negative, and eido, "to see"), but this derivation is questionable; a more probable derivation is from hado, signifying "all-receiving." It corresponds to "Sheol" in the OT. In the AV of the OT and NT; it has been unhappily rendered "hell," e.g., Psalm 16:10; or "the grave," e.g., Genesis 37:35; or "the pit," Numbers 16:30,33; in the NT the revisers have always used the rendering "hades;" in the OT, they have not been uniform in the translation, e.g. in Isaiah 14:15 "hell" (marg., "Sheol"); usually they have "Sheol" in the text and "the grave" in the margin. It never denotes the grave, nor is the permanent region of the lost; in point of time it is, for such, intermediate between decease and the doom of Gehenna. For the condition, see Luke 16:23-31 .