King James Bible Dictionary

properly to be {dense} that {is} tough or severe (in various applications)

1. to be hard, be severe, be fierce, be harsh

a. (Qal)

1. to be hard, be difficult

2. to be hard, be severe

b. (Niphal)

1. to be ill-treated

2. to be hard pressed

c. (Piel) to have severe labour (of women)

d. (Hiphil)

1. to make difficult, make difficulty

2. to make severe, make burdensome

3. to make hard, make stiff, make stubborn 1d

e. of obstinacy (fig)

1. to show stubbornness