Sitnah
Easton's Dictionary
Strife, the second of the two wells dug by Isaac, whose servants here contended with the Philistines (Gen. 26:21). It has been identified with the modern Shutneh, in the valley of Gerar, to the west of Rehoboth, about 20 miles south of Beersheba.
Smith's Dictionary
International Standard Bible Encyclopedia
sit'-na (siTnah, "hatred," "hostility"; echthria): The name of the second of the two wells dug by the herdsmen of Isaac, the cause of further "enmity" with the herdsmen of Gerer (Ge 26:21, margin "That is, Enmity"). The site is unknown, but Palmer (PEFS, 1871) finds an echo of the name in Shutnet er Rucheibeh, the name of a small valley near Rucheibeh.
See REHOBOTH.