Judges 8:10

Zebah and Zalmunna were in Karkor - If this were a place, it is nowhere else mentioned in Scripture. Some contend that קרקר karkor signifies rest; and thus the Vulgate understood it: Zebah and Zalmunna requiescebant , rested, with all their army. And this seems the most likely, for it is said, Judges 8:11 , that Gideon smote the host, for the host was secure.