Geder
Easton's Dictionary
A walled place, (Josh. 12:13), perhaps the same as Gederah or Gedor (15:58).
Smith's Dictionary
(a wall). The king of Geder was one of the thirty-one kings who were overcome by Joshua on the west of the Jordan. (Joshua 12:13) (B.C. 1445.) It is possible that it may be the same place as the Geder named in (1 Chronicles 4:39)
International Standard Bible Encyclopedia
ge'-der (gedher): A royal city of the Canaanites taken by Joshua along with Lachish, Eglon, Gezer, Debir and Hormah (Jos 12:13 f). It may be the city called "Beth-gader" in 1Ch 2:51, and the birthplace of Baal-hanan, who had charge of David's olives and sycamores (27:28); unidentified.