In the musical "Wicked," what is the proper name of the character who is born with green skin and eventually becomes the Wicked Witch of the West?

Elphaba

The name Elphaba was created by author Gregory Maguire as a tribute to L. Frank Baum, using the initials of his name (L.F.B.). The musical explores her misunderstood youth and her complicated friendship with Glinda the Good.