Strong's G599 — ἀποθνήσκω (verb)
apothnesko (ap-oth-nace'-ko) v.
1. to die off
{literally or figuratively}
[from G575 and G2348]
KJV: be dead, death, die, lie a-dying, be slain (X with) 
Root(s): G575, G2348 
Hebrew root: θνήσκω
Occurrences: 111