ita, íta adv. 2) "very, extremely" (PE17:112). Like #1 above, this element emerged as part of Tolkiens 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.
Primitive elvish
-ita
suffix. general infinitive
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".