`oreph (Hebrew #6203)
the nape or back of the neck (as declining); hence, the back generally (whether literal or figurative)
KJV usage: back ((stiff-)neck((-ed).
Pronounce: o-ref'
qasheh (Hebrew #7186)
severe (in various applications)
KJV usage: churlish, cruel, grievous, hard((-hearted), thing), heavy, + impudent, obstinate, prevailed, rough(-ly), sore, sorrowful, stiff((necked)), stubborn, + in trouble.
Pronounce: kaw-sheh'