Arphaxad in Fausset's Bible Dictionary

(Genesis 10:21-24. Professor Rawlinson translates: "unto Shem also, the father of all the children of Eber, the elder brother of Japhet, were children born, Arphaxad": Genesis 11:10) ("the stronghold of the Chaldees".) Shem's descendants are mentioned last, because the subsequent sacred history concerns them chiefly. His being forefather to Eber or Heber is specified, to mark that the chosen people of God, the Hebrew, sprang from Shem: Arphaxad was father of Salah. There was a portion of Assyria called Arrapachitis, from Arapkha, "the city of the four sacred fish," often seen on cylinders; but the affinity is doubtful.