The White

From Tolkien Gateway

The White was a title apparently used to denote the head of the Wizards in Middle-earth, originally borne by Saruman,[1] but claimed by Gandalf after his return.[2]

This title was also given (with a more literal meaning) to Celebdil, the snow-capped mountain above Khazad-dûm where Durin's Tower was built.[3]

References