Genesis 36:2

“And Esau took his wives of the daughters of Canaan, etc.] Of the Canaanites, the posterity of cursed Canaan, most of them were of them, though not all, the two following were, and so those, if different from them in (<012634>Genesis 26:34), one of his wives was of the family of Ishmael, as after related: Adah the daughter of Elon the Hittite; according to Jarchi and Aben Ezra, this is the same with Bashemath, (<012634>Genesis 26:34); and that she had two names: and Aholibamah the daughter of Anah, the daughter of Zibeon the Hivite; the daughter of the one, and the granddaughter of the other, it being usual in Scripture to call grandchildren children, for Zibeon and Anah were father and son,…”

“Esau took his wives of the daughters of Canaan--There were three, mentioned under different names; for it is evident that Bashemath is the same as Mahalath (Gen 28:9), since they both stand in the relation of daughter to Ishmael and sister to Nebajoth; and hence it may be inferred that Adah is the same as Judith, Aholibamah as Bathsemath (Gen 26:34). It was not unusual for women, in that early age, to have two names, as Sarai was also Iscah [Gen 11:29]; and this is the more probable in the case of Esau's wives, who of course would have to take new names when they went from Canaan to settle in mount Seir.”

“- Section XII - Jacob - The History of Esau 2. אהלבמה 'ohŏlı̂ybâmâh, Oholibamah, “tent of the high place.” ענה ‛ǎnâh, ‘Anah, “answering.” צבעון tsı̂b‛ôn, Tsib‘on, “dyer, colored.” 4. אליפז 'ělı̂yphaz, Eliphaz, “God of strength.” רעוּאל re‛û'êl Re‘uel, “friend of God.” 5. יעוּשׁ ye‛ûsh, Je‘ush, “haste.” יעלם ya‛lâm, Ja‘lam, “hiding.” קרח qôrach Qorach, “ice.” 11. תימן têymân, Teman, “right-hand man.” אומר 'ômār, Omar, “eloquent.” צפו tsephô, Tsepho, “watch.” געתם ga‛tâm Ga‘tam, “touch.” קנז qenaz Qenaz, “hunting.” 12. תמנע tı̂mnâ( Timna‘, “restraint.” עמלק ‛ǎmâlêq, ‘Amaleq, “licking up, laboring.” 13. נחת nachath, Nachath, “going down, rest.” זרח zerach, Zerach, “rising”…”

“36:2-3 Esau’s three wives—Adah, Oholibamah, and Basemath—are listed. Two of these wives’ names are different from those listed earlier (26:34; 28:9). Perhaps the others died, or Esau favored these three among a total of six, or these were just different names for the same three. There is not enough information to decide. 36:2 Oholibamah was a great-granddaughter of Seir the Horite, whose descendants lived in Edom when Esau went to live there (36:20, 25).”