Easton's Bible Dictionary (1897)
Ascent of the scorpions; i.e., “scorpion-hill”, a pass on the south-eastern border of Palestine (Num. 34:4; Josh. 15:3). It is identified with the pass of Sufah, entering Palestine from the great Wady el-Fikreh, south of the Dead Sea. (See AKRABBIM.)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
MAAL'EH-ACRAB'BIM (the ascent of scorpions). Josh 15:3. The form is given elsewhere as Akrabbim.