to harden

apparently from (a kind of stone); to petrify, i.e. (figuratively) to indurate (render stupid or callous):-- blind, harden.

from σκληρός; to indurate, i.e. (figuratively) render stubborn:--harden.

a primitive root; properly, to be dense, i.e. tough or severe (in various applications); 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)).

a primitive root; to be (causatively, make) unfeeling; harden.