Strong's G86 — ᾅδης (noun)
hades (hah"-dace) n.
1. (properly) unseen
2. (commonly) "Hades," the place (state) of departed souls
[from G1 (as negative particle) and G1492]
KJV: grave, hell 
Root(s): G1, G1492 
Hebrew root: εἴδω
Occurrences: 10