Quenya 

Melkor

mighty-rising

Melkor (spelt Melcor in VT49:6, 24, MR:362), masc. name: the rebellious Vala, the devil of the Silmarillion mythos. Older (MET) form Melkórë "Mighty-rising" (hence the interpretation "He that arises in power"), compare órë #2. Oldest Q form *mbelekōro (WJ:402). Ablative Melkorello/Melcorello, VT49:7, 24. Compounded in Melkorohíni "Children of Melkor", Orcs ("but the wiser say: nay, the slaves of Melkor; but not his children, for Melkor had no children") (MR:416). The form Melkoro- here occurring may incorporate either the genitive ending -o or the otherwise lost final vowel of the ancient form ¤mbelekōro. For Melkors later name, see Moringotto / Moricotto (Morgoth) under mori-.