קָשָׁה
qashah (kaw-shaw') v.
1. (properly) to be dense, i.e. tough or severe (in various applications)
[a primitive root]
KJV: be cruel, be fiercer, make grievous, be ((ask a), be in, have, seem, would) hard(-en, (labour), -ly, thing), be sore, (be, make) stiff(-en, (-necked)).