Meaning: a wall
This was the name of three biblical places.
a city in the mountains or hill country of Judah (Joshua 15:58), identified with Jedar, between Jerusalem and Hebron
1 Chronicles 4:39, the Gederah of Joshua 15:36, or the well-known Gerar, as the Septuagint read, where the patriarchs of old had sojourned and fed their flocks (Genesis 20:1, 14-15; 26:1, 6, 14)
a town apparently in Benjamin (1 Chronicles 12:7), the same probably as Geder (Joshua 12:13)