Charles Ellicott Commentary Genesis 36:3

"and Basemath Ishmael`s daughter, sister of Nebaioth." — Genesis 36:3 (ASV)

Bashemath Ishmael’s daughter, sister of Nebajoth. —The Samaritan text reads Mahalath here, and in Genesis 36:4, Genesis 36:10, and Genesis 36:17, as in Genesis 28:9. There can be little doubt that Mahalath is the right reading, but the versions, nevertheless, agree with the Masoretic Hebrew text, so that the error must have been of very ancient date. As Mahalath was of a Semitic stock, she would have her own Semitic name, and there would be no double translation of it, as in the case of the daughter of Elon.