from
Easton's 1897 Bible Dictionary
Etam
eyrie. (1.) A village of the tribe of Simeon (1 Chr. 4:32). Into
some cleft ("top," A.V.,; R.V., "cleft") of a rock here Samson
retired after his slaughter of the Philistines (Judg. 15:8, 11).
It was a natural stronghold. It has been identified with Beit
'Atab, west of Bethlehem, near Zorah and Eshtaol. On the crest
of a rocky knoll, under the village, is a long tunnel, which may
be the "cleft" in which Samson hid.
(2.) A city of Judah, fortified by Rehoboam (2 Chr. 11:6). It
was near Bethlehem and Tekoah, and some distance apparently to
the north of (1). It seems to have been in the district called
Nephtoah (or Netophah), where were the sources of the water from
which Solomon's gardens and pleasure-grounds and pools, as well
as Bethlehem and the temple, were supplied. It is now 'Ain
'Atan, at the head of the Wady Urtas, a fountain sending forth a
copious supply of pure water.