Gederah

the fortress; a fortified place, a town in the plain (shephelah)
of Judah (Josh. 15:36). This is a very common Canaanite and
Phoenician name. It is the feminine form of Geder (12:13); the
plural form is Gederoth (15:41). This place has by some been
identified with Jedireh, a ruin 9 miles from Lydda, toward
Eleutheropolis, and 4 miles north of Sur'ah (Zorah), in the
valley of Elah.