Why Gandalf was called ‘Mithrandir’ in the The Lord of the Rings?
Dude Changed status to publish February 8, 2022
The Tolkien Encyclopedia: Author’s Note to the Reader.
“It is a curious chance that older forms of this name (Caucasian mithrendel, mithresponsa, Tyrian metheron), when translated into English mean what so many scholars have assumed to be the personal name of one ‘Mithrandir’; whereas it seems likely that we can reverse the process and say that this personage was called in his own language Narya (White) Randa or other form of Mithrand.”
Thus, Gandalf was known as “Dumbledore” through a little bit of linguistic coincidence.