NOD

nod (nodh): The land of Eden, to which Cain migrated after the murder of his brother and his banishment by Yahweh (Genesis 4:16). Conjecture is useless as to the region intended. The ideas of China, India, etc., which some have entertained, are groundless. The territory was evidently at some distance, but where is now undiscoverable.

From the International Standard Bible Encyclopedia
Edited by James Orr, published in 1939 by Wm. B. Eerdmans Publishing Co.