the lake, it forms the border between the Kingdom of Jordan (to the east), and Israel (to the west). Tributaries The streams coming together to create the River Jordan in its upper basin are, west to east: Iyyon (Hebrew: עיון Iyyon), Arabic name: Ajoun stream, but دردره Dardara for the uppermost course and براغيث Bareighith or Beregeith for the rest of its course, a stream which flows from Merj 'Ayun area in southern Lebanon. Hasbani (Arabic: الحاصباني Hasbani, Hebrew: either שניר Snir or Hatzbani), a stream which flows from the north-western foot of Mount Hermon in Lebanon, with a flow of 118 million m3 annually. Dan (Arabic: اللدان Leddan or Liddan, Hebrew: דן Dan), the largest among the Jordan's upper course tributaries with c. 240-252 million cubic metres per year, about twice as much as the Hasbani or the Banias, a stream whose source is also at the base of Mount Hermon. Banias (Arabic: بانياس Banias, Hebrew: either Banias or חרמון Hermon), a stream arising from a spring at Banias at the foot of Mount Hermon, with a flow of 106 million m3 annually, and Nahal Sion or Nahal Assal (Hebrew) / Wadi el-'Asl or Assal (Arabic) as its major tributary. South of the Sea of Galilee, the Jordan River receives the waters of further tributaries, the main ones, both coming from the east (Jordan), are: Yarmouk, the largest tributary of the lower course of the River Jordan, which forms the border between Syria and Jordan and then Jordan and Israel Zarqa, the second-largest tributary of the lower Jordan River. Smaller tributaries or "side wadis" / "side streams" in this segment are, north to south from the east (6–10 in total) Wadi al-'Arab Wadi Ziqlab Wadi al-Yabis Wadi Kafranja or Kufrinjah passing near Ajloun Wadi Rajib, the last before Wadi Zarqa Wadi Nimrin from the west Nahal Yavne'el Nahal Tavor (Tabor Stream) Nahal Yissakhar Nahal Harod Nahal Bezeq, on the border between Israel and the West Bank, between Mount Gilboa and the Samaria Mountains Wadi el Maleh from the Samaria Mountains Wadi al-Far'a coming from the Nablus area Wadi Auja (Arabic) or Nahal Yitav (Hebrew) Wadi Qelt coming down from the Judean mountains and passing through Jericho Etymology Several hypotheses for the origin of most of the river's names in modern languages (e.g., Jordan, Yarden, Urdunn), one is that it comes from Semitic 'Yard|on' 'flow down' <√ירד reflecting the river's