Easton's Bible Dictionary (1897)
(Gen. 36:39) or Pai (1 Chr. 1:50), bleating, an Edomitish city ruled over by Hadar.
Smith's Bible Dictionary (1863)
(bleating) (but in (1 Chronicles 1:50) Pai), the capital of Hadar king of Edom. (Genesis 36:39) Its position is unknown.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
PAU (bleating), a place in Idumaea; called Pai in 1 Chr 1:50; Gen 36:39. It may be identical with Phauara, a ruined site in Idumaea.
Hitchcock's Bible Names (1869)
same as Pai