Atad
   buckthorn, a place where Joseph and his brethren, when on their
   way from Egypt to Hebron with the remains of their father Jacob,
   made for seven days a "great and very sore lamentation." On this
   account the Canaanites called it "Abel-mizraim" (Gen. 50:10,
   11). It was probably near Hebron. The word is rendered "bramble"
   in Judg. 9:14, 15, and "thorns" in Ps. 58:9.
   

Atad, a thorn