Smith's Bible Dictionary (1863)
(strong), a place named as being on the southern boundary of the Holy Land, apparently near the torrent of Egypt (Wadi el-Arish). (Numbers 34:4,5; Joshua 15:4) It has not yet been identified.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
AZ'MON (strong), a place in the south-western part of Palestine. Josh 15:4; Robinson and Trumbull describe "Kasaimeh" or "Qasaymeh," which is probably the site of Azmon.
Hitchcock's Bible Names (1869)
bone of a bone; our strength