Hid'dekel. (rapid). One of the rivers of Eden, the river which "goeth eastward to Assyria," Genesis 2:14, and which Daniel calls, "the great river," Daniel 10:4, seems to have been rightly identified by the Septuagint (LXX) with the Tigris. Dekel is clearly an equivalent of Digla or Dighath, a name borne by the Tigris in all ages. The name now in use among the inhabitants of Mesopotamia is Dijleh.