The name Kadesh in the Bible
Kadesh is a town in southern Canaan, close to Beer-lahai-roi in the Negev region (Genesis 16:14, see 24:62), and first mentioned in the war of four against five kings (Genesis 14:7). It's also known as En-mishpat (Genesis 14:7) and Kadesh-barnea (Numbers 32:8).
Etymology of the name Kadesh
The name Kadesh comes from the verb קדש (qadash) to be consecrated, hallowed or sanctified:
For a meaning of the name Kadesh, NOBSE Study Bible Name List reads Holy. Jones' Dictionary of Old Testament Proper Names doesn't treat Kadesh separately but reads Sacred for the Kadesh-part of Kadesh-barnea.