Aenon in Easton's Bible Dictionary

springs, a place near Salim where John baptized (John 3:23). It was probably near the upper source of the Wady Far'ah, an open valley extending from Mount Ebal to the Jordan. It is full of springs. A place has been found called 'Ainun, four miles north of the springs.

Link: https://bible-history.com/eastons/A/AEnon/