🔼The name Eran in the Bible
The name Eran occurs only once in the Bible. Apparently, Eran is the patriarch of a sub-clan within the tribe of Ephraim, fittingly called ערני; the Eranites (Numbers 26:36). But Eran and the Eranites are also listed among the sons of Shuthelah. It's not wholly clear what the relationship is with Shuthelah, but it seems that the latter is the patriarch of yet a larger clan, of which the Eranites are part. No Shuthelahites are mentioned, however.
🔼Etymology of the name Eran
The name Eran may come from any of the roots עור ('ur), but scholars generally assume it's from עור I, meaning to rouse oneself, be awake:
The letter nun upon which our name ends may be a remnant of the familiar waw-nun extension, which personifies or localizes a root. The name Eran would thus mean Awake Man.
For a meaning of the name Eran, both NOBSE Study Bible Name List and Jones' Dictionary of Old Testament Proper Names read Watchful. BDB Theological Dictionary doesn't translate or interpret our name but does list it under the root-verb עור I ('ur I), meaning to rouse oneself, be awake.