from
Easton's 1897 Bible Dictionary
Arabah
plain, in the Revised Version of 2 Kings 14:25; Josh. 3:16;
8:14; 2 Sam. 2:29; 4:7 (in all these passages the A.V. has
"plain"); Amos 6:14 (A.V. "wilderness"). This word is found in
the Authorized Version only in Josh. 18:18. It denotes the
hollow depression through which the Jordan flows from the Lake
of Galilee to the Dead Sea. It is now called by the Arabs
el-Ghor. But the Ghor is sometimes spoken of as extending 10
miles south of the Dead Sea, and thence to the Gulf of Akabah on
the Red Sea is called the Wady el-Arabah.