OET interlinear GEN 28:9

uW Translation Notes:

וַ⁠יֵּ֥לֶךְ עֵשָׂ֖ו אֶל־יִשְׁמָעֵ֑אל

(Some words not found in UHB: and=he/it_went ˊĒsāv to/towards Yishmāˊ^ʼēl/(Ishmael) and=he/it_took DOM Maḩₐlat daughter_of Yishmāˊ^ʼēl/(Ishmael) son_of ʼAⱱrāhām's sister_of Nəⱱāyōt on/upon/above/on_account_of//he/it_went_in wives_of,his to=him/it to/for=(a)_woman )

Most likely Ishmael was already dead by this time, so that Esau went to the region where Ishmael’s children and other descendants were living. Alternate translation: [Then Esau traveled to the clan of Ishmael]

Note 1 topic: translate-kinship

אֲח֧וֹת נְבָי֛וֹת

sister_of Nəⱱāyōt

Be consistent here with how you spelled Nebaioth in Genesis 25:13. Since Nebaioth was Ishmael’s oldest child, Mahalath was his younger sister, probably from the same mother. Use a kinship term here in your language for sister or “brother” that fits with those facts. Alternate translation: [and who was the younger sister of Nebaioth] or [and whose older brother was Nebaioth]

Note 2 topic: figures-of-speech / infostructure

עַל־נָשָׁ֖י⁠ו ל֥⁠וֹ

on/upon/above/on_account_of//he/it_went_in (Some words not found in UHB: and=he/it_went ˊĒsāv to/towards Yishmāˊ^ʼēl/(Ishmael) and=he/it_took DOM Maḩₐlat daughter_of Yishmāˊ^ʼēl/(Ishmael) son_of ʼAⱱrāhām's sister_of Nəⱱāyōt on/upon/above/on_account_of//he/it_went_in wives_of,his to=him/it to/for=(a)_woman )

For some languages it may be better to change the order of some of the clauses in this sentence and say, “So, in addition to the two wives he already had, Esau went to the family of Abraham’s son Ishmael and married Ishmael’s daughter Mahalath, whose brother was Nebaioth.” Alternate translation: [besides the two wives he already had]