Genesis 36:2

Esau took his wives— It appears by comparing ch. Genesis 26:34. that these wives of Esau went under several names, as seems to have been a common custom in those days. It is of little importance to settle these names, and perhaps impossible at present. The word daughter, in Scripture, is frequently used, like that of brother, in a general sense, for a grand-daughter, a niece, &c. Anah the daughter of Zibeon, should be read the son; see Genesis 26:24 as several of the versions direct; if, which may probably be the case, the same name belongs not to two different persons of different sexes.