And the first came out red, all over like an hairy garment; and they called his name Esau. Red, all over like a hairy garment - This simply means that he was covered all over with red hair or down; and that this must be intended here is sufficiently evident from another part of his history, where Rebekah, in order to make her favourite son Jacob pass for his brother Esau, was obliged to take the skins of kids, and put them upon his hands and on the smooth part of his neck.
They called his name Esau - It is difficult to assign the proper meaning of the original עשו esau or esav; if we derive it from עשה asah it must signify made, performed, and, according to some, perfected; esa in Arabic signifies to make firm or hard, and also to come to man's estate, to grow old. Probably he had this name from his appearing to be more perfect, robust, etc., than his brother.