The sons of Seir— The country was most probably denominated from this person, whose genealogy is here set down, because Esau's posterity married with some of his descendants. Le Clerc thinks the country was called after Esau, from a word signifying rough, or hairy.
Related Commentaries of Genesis 36:20
Genesis 36:20
20 These are the sons of Seir the Horite, who inhabited the land; Lotan, and Shobal, and Zibeon, and Anah,