🔼The name En-rogel in the Bible
The name En-rogel belonged to a place on border between Judah in the south (Joshua 15:7) and Benjamin in the north (Joshua 18:16). During Absalom's uprising, Jonathan son of Abiathar and Ahimaaz son of Zadok served king David as spies and stayed in En-rogel (2 Samuel 17:17, only here spelled with a maqqep or hyphen).
En-rogel is also associated with the uprising of David's other rebellious son, Adonijah the son of David's wife Haggith. When he saw fit to pronounce himself king, he sacrificed sheep and oxen by the Stone of Zoheleth near En-rogel (1 Kings 1:9).
🔼Etymology of the name En-rogel
The name En-rogel consists of two elements. The first part is the same as the noun עין ('ayin), which means both eye and fountain:
The second part of our name comes from the noun רגל (regel), which means foot:
The rogel-part of our name is apparently a common noun, which doesn't occur in the narrative of the Bible. BDB Theological Dictionary lists it and explains that it denotes a fuller; a person who's profession it is to trample or stump on clothes in order to wash of thicken them (says the Oxford dictionary).
For a meaning of the name En-rogel, NOBSE Study Bible Name List reads The Fuller's Fountain and Jones' Dictionary of Old Testament Proper Names proposes Fountain Of The Fuller. BDB Theological Dictionary does not translate this name, but does state that the second part means fuller.