e.sav is the proper name used for Isaac’s son, appearing in family narratives and in references to his descendants in Seir.

The term functions as a proper name for Isaac’s son in the Genesis narratives, including scenes involving Jacob, Isaac, and Rebekah; it also identifies the ancestor named in phrases concerning his descendants living in Seir.

1. Proper name of Isaac’s son and ancestral referent · dominant

   The form is tagged Noun · Proper throughout. In Genesis 25:25 the APB renders the naming of the firstborn child, and in Genesis 27:22 it renders Isaac’s contrast between Jacob’s voice and the hands identified with this named brother. In Deuteronomy 2:4, the same name occurs in the clause about descendants who live in Seir.

   Genesis 25:25Genesis 27:22Genesis 27:41Genesis 33:1Deuteronomy 2:41 Chronicles 1:35

In the Anselm Project Bible: The APB regularly presents the proper name as “Esau,” both in direct family scenes and in phrases such as “the descendants of Esau.” Because the translation gives whole-verse renderings rather than word alignment, those English forms confirm the named referent without isolating every occurrence’s precise contribution.