back ((stiff-)neck((-ed)

Strong’s Dictionary of Hebrew Words:

Number:
6203 (find all occurrences in KJV Bible)
Transliteration:
`oreph
Phonic:
o-ref’
Meaning:
from 6202; the nape or back of the neck (as declining); hence, the back generally (whether literal or figurative)
KJV Usage:
back ((stiff-)neck((-ed)