Karkor
The name Karkor means “they rested”.
Easton's Bible Dictionary 1897
Foundation, a place in the open desert wastes on the east of Jordan (Judg. 8:10), not far beyond Succoth and Penuel, to the south. Here Gideon overtook and routed a fugitive band of Midianites under Zeba and Zalmunna, whom he took captive.
Smith's Bible Dictionary 1863
(foundation), the place in which Zebah and Zalmunna were again routed by Gideon, (Judges 8:10) must have been on the east of Jordan.
International Standard Bible Encyclopedia 1915
kar'-kor (qarqor): An unidentified place where Gideon surprised and overwhelmed the remnants of the army of Zeba and Zalmunnah (Jud 8:10). It probably corresponds to Qarkar mentioned by Shalmaneser II, S. of Hamath (KB, I, 173).