Easton's Bible Dictionary (1897)
, “foot-fountain;” also called the “fullers’ fountain,” because fullers here trod the clothes in water. ), the modern ‘Ain Ummel-Daraj. Others identify it, with perhaps some probability, with the Bir Eyub, to the south of the Pool of Siloam, and below the junction of the valleys of Kidron and Hinnom. ) It was at this fountain that Jonathan and Ahimaaz lay hid after the flight of David (2 Sam. 17:17); and here also Adonijah held the feast when he aspired to the throne of his father (1 Kings 1:9). The Bir Eyub, or “Joab’s well,” “is a singular work of ancient enterprise.
” Thomson’s Land and the Book.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
EN-RO'GEL (fountain of the fuller), a spring not far from Jerusalem. Josh 15:7; Josh 18:16; 2 Sam 17:17, 2 Sam 17:21; 1 Kgs 1:9. Some place it at the "well of Joab," in the valley of Hinnom. M. Ganneau would identify it with the Fountain of the Virgin. See Jerusalem.
Hitchcock's Bible Names (1869)
the fuller's fountain; the well of searching