Four letters form me quite complete

Puzzle

Four letters form me quite complete,
As all who breathe do show;
Reversed, you'll find I am the seat
Of infamy and woe.
Transposed once more, I oft am seen mean,
My name betrays my race;
Transposed once more, I oft am seen
To hide a lovely face.

Hint

Answer

References

• Loyd, Sam [1914]. in Loyd, Sam, Jr.: Sam Loyd's Cyclopedia of 5000 Puzzles Tricks and Conundrums (in English). New York: Lamb Publishing company, page 54.