|Other names||Aulendur (Q, epessë),|
Urundil (Q, epessë),
Rusco (Q, epessë)
|Hair color||Red brown|
A skilled smith in Valinor, Mahtan learned the arts of metal and stone work under the Vala Aulë, and for this Mahtan was also called Aulendur ("Servant of Aulë"). He wore a copper circlet around his head and was known for his fondness for the metal. Thus he was called Urundil - 'copper-lover'. Mahtan in turn taught Fëanor, the greatest of all Elven craftsmen, who—to Mahtan's regret—used this knowledge to forge the first weapons and armour in Valinor.
Mahtan had a beard, which was unusual for an Elf, especially one as young as he. Elves could only grow beards from the third cycle of their lives, while Mahtan was an exception in being only early in his second.
Mahtan's name seems to come from a root MAK, meaning "to handle", with special reference to the arts and skills of making, plus the active ending -tan. The name must have a connotation like "Wright, Smith, Maker"