ENAIM, ENAM (e*ch-nā'ĭm, ē'năm, Heb. ‘ênayim, place of a fountain). One of fourteen cities in the Shephelah or foothills of Judah (Gen.38.14, Gen.38.21). Enam is probably a variant that appears in the list of the towns of Judah and Simeon, between Adullam and Timnah (Josh.15.34).
ENAIM ĭ nā’ əm (Heb. עֵינַ֔יִם), a rare dual place name, “Two Eyes.” The root of the word has a long and complicated history (KB p. 699). It may mean “spring” (Gen 16:7). Mentioned only in Genesis 38:14, 21, it is treated as a place name in the Rabbinical tradition, LXX, and most VSS, but KJV trs. it as “open place.” Located in the high hill country SE of Jerusalem between Adullam and Timnah, a variant of the name, Enam (q.v.) appears in Joshua 15:34.
International Standard Bible Encyclopedia (1915)
(`enayim, "place of a fountain"; Ainan; Ge 38:14 (the [[King James Version]] "in an open place"; Ge 38:21 the King James Version "openly")):
A place which lay between Adullam and Timnath; probably the same as Enam (Jos 15:34). Also mentioned in close connection with Adullam. It was in the Shephelah of Judah. The Talmud (Pesik. Rab. 23) mentions a Kephar Enaim. Conder proposes Khurbet Wady `Alin, which is an ancient site, evidently of great strength and importance, lying between Kh. `Ain Shems and the village of Deir Aban. The ruins crown a lofty and almost isolated hill; the greatest objection to the identification is that there is no fountain at all in the immediate neighborhood. There may have been one in earlier times. See PEF, III, 128.