Quettaparma Quenyallo

Írissë fem. name (PM:345), evidently connected to írë "desire".

irmin noun "the world, all the regions inhabited by Men" (LT2:343; hardly a valid word in Tolkien's later Quenya)

Irmo masc. name "Desirer", name of a Vala; normally called Lórien, properly the place where he dwells (WJ:402)

is noun "light snow" (LT1:256)

-is ending for the plural form of an unidentified case, by some called "respective" or "short locative" (Plotz)

isca ("k") adj. "pale" (LT1:256)

Isil (þ) place-name "Moon" (FS; SA:sil, Appendix E, SD:302, SIL; also defined as "the Sheen" under THIL); Isildur masc. name., *"Moon-servant" (SA:sil, Appendix A, NDŪ)

isilmë (þ) noun "moonlight", occurring in Markirya; free translation "the moon" in MC:215 (isilmë ilcalassë, literally "moonlight gleaming-in" = "in the moon gleaming"). Isilmë also appears as the name of a Númenorean woman (UT:210).