Quettaparma Quenyallo

istya noun "knowledge" (IS). Also ista (#1).

istyar noun "scholar, learned man" (IS). According to VT45:18, Tolkien at one point also meant istyar to be the name of Tengwa #13 with overposed dots to indicate a palatal sound; the letter would thus have the value sty. However, according to the classical Tengwar spelling of Quenya as outlined in LotR Appendix E, such a letter would rather have the value *nty (since #13 is there assigned the value nt in Quenya).

iswa adj. "wise" (LT2:339); rather saila in Tolkien’s later Quenya.

-itë adjectival ending, often attached to nouns with the sense of “having X” or “having the quality of X” (VT49:42)

íta noun "a flash" (PM:363)

ita- 1) vb. "sparkle" (SA:ril, PM:363)

ita, íta adv. 2) “very, extremely” (PE17:112). Like #1 above, this element emerged as part of Tolkien’s efforts to explain the initial element of the name Idril (Q Itaril), so it is questionable if #1 and #2 were ever meant to coexist in the “same” version of Quenya.

ita 3) pron “that which” (VT49:12), emended from tai (#1, q.v.) The form ita is compounded from the relative pronoun i + the pronoun ta “that, it”.