Strong’s Greek
G3577 — notos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
νῶτος
notos — pronounced no'-tos
of uncertain affinity; the back:--back.
1 occurrence in the KJV.
Romans 11:10
Let their eyes be darkened, that they may not see, and bow down their back alway.