Statistics for occurrence #1 of “Euphrates” in book 1, section 220 of Flavius Josephus, Antiquities of the Jews:

...rived originally. Of this wife were born to Ismael twelve sons; Nabaioth, Kedar, Abdeel, Mabsam, Idumas, Masmaos, Masaos, Chodad, Theman, Jetur, Naphesus, Cadmas. These inhabited all the country from Euphrates to the Red Sea, and called it Nabatene. They are an Arabian nation, and name their tribes from these, both because of their own virtue, and because of the dignity of Abraham their father.
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Euphrates 192 16 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.