Quenya 

maira

admirable, excellent, precious

maira adj. "admirable, excellent, precious"; "splendid, sublime" ("only of great, august or splendid things") (PE17:163, 172). Cf. Mairon.

maira

adjective. admirable, excellent, precious, splendid, sublime

Quenya [PE17/163; PE17/172] Group: Eldamo. Published by

mairon

masculine name. Admirable

The original name of Sauron before his corruption by Melkor (PE17/183). Even after his corruption, he still called himself Mairon or Tar-Mairon sometimes, at least until he lost his beautiful form after the fall of Númenor (PE17/183). This name seems to be a masculinized form of the adjective maira “admirable”.