🔼The name Suph in the Bible
The name Suph occurs only once in the Bible, although some interpreters (and notably those behind the King James version) believe that Suph is short for Yam-sup, which is the Hebrew name for Sea of Reeds (which in turn is often misinterpreted as the Red Sea).
But on its own, the name Suph occurs only in Deuteronomy 1:1, where Moses is said to have addressed Israel across the Jordan, in the Arabah opposite Suph, between Paran and Tophel and Laban and Hazeroth and Dizahab.
🔼Etymology of the name Suph
The name Suph is identical to the collective noun סוף (sup), which denotes the vegetation on the border between dry land and water; reeds:
Since Jones' Dictionary of Old Testament Proper Names works off the King James, it omits the name Suph. NOBSE Study Bible Name List, however, omits Suph for no good reason. BDB Theological Dictionary does not translate our name but does confirm that it is identical to the noun סוף (sup), meaning Reeds.