Irmo masc. name "Desirer", name of a Vala; normally called Lórien, properly the place where he dwells (WJ:402)
irmomasculine name. Desire, Desire (of what might be or should be), Desirer, Desirer, Master of Desire
Vala of visions and dreams, spouse of Estë, usually referred to by the name of his realm Lórien (S/28). His name is translated “(Master of) Desire” or “Desirer” (MR/150, WJ/403, PE21/85). It is probably a translation of his (unknown) Valarin name (WJ/403). It is most likely a compound of írë “desire” and the agental suffix -mo.
Conceptual Development: In Silmarillion revisions from the beginning of the 1950s, this name first appeared as Lís, later changed to Irmo (MR/150). In earlier Silmarillion drafts from the 1930s, ᴹQ. Lórien was his true name, and he was also known by the sobriquet ᴹQ. Olofantur.
írë (1) noun "desire". (ID). In the pre-classical Tengwar system presupposed in the Etymologies, írë was also the name of a long carrier with an i-tehta above it, denoting long í. (VT45:17).
yesta- (1) vb. "desire" (YES, VT46:23; the latter source indicates that Tolkien did write yesta- with a final hyphen, indicating that this is "desire" as a verbal stem, not as a noun).
Írissë fem. name (PM:345), evidently connected to írë "desire".
milmë noun "desire, greed" (MIL-IK)
Lórien (from lor-, q.v.), place-name also used as the name of a Vala, properly the place where he dwells, whereas his real name is Irmo (WJ:402, LOS (ÓLOS, SPAN) ). Alternative forms Lorien (with a short o) and Lorion, MR:144.
Irmo (pronounced [ˈirmo]) is a Quenya name meaning "Desirer" or "Master of Desire". His common name Lórien (Quenya; [ˈloːri.en]) means "Land of Dreams", so he was also given the title "Master of Dreams".[source?] In early versions of the legendarium, this Vala (variously spelt Lorien and Lôrien) was given many different surnames: Qenya Olofantur (the element fantur, a derivative of the root FANA, refers to "visions, dreams, falling asleep"), Qenya Fulmur (probably from the root FUMU, "sleep"), and Gnomish Losfan (consisting of oloth "a dream, apparition, vision" + ending -fan, thus (o)loth-fan > Losfan). Gnomish renderings of his first name included Glurim (containing the element lûr "slumber") and Lûriel or Lúriel (> Lúrin).
* írënoun. desire