Pau
The name Pau means “same as Pai”.
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.