The fourth line of Átaremma, Tolkien’s Quenya translation of the Lord’s Prayer. The first word na “be” serves a subjunctive or imperative function, followed by carë “done”, the aorist or infinitive form of car- “to make, do”. This is followed by indómelya “thy will”, the second person singular polite possessive form of indómë.
Decomposition: Broken into its constituent elements, this phrase would be:
> na carë indóme-lya = “✱be done will-thy”
Conceptual Development: In earlier versions of this phrase (I-IV), Tolkien vacillated over whether to use á or na for the subjunctive/imperative element. Tolkien also used mendë for “will” instead of indómë in the early versions of the prayer, and he used different verb forms for car-: carina (I-IIa, likely a passive participle “done”) and cara (IIb-IV, perhaps a suffixed imperative).
There is a peculiar form carima in version V of the prayer, which resembles an adjective. Elsewhere, the suffix -ima has a function similar to the suffixes “-able, -ful” in English (PE17/68), which would give carima the meaning “do-able”, but this seems unlikely to be the intended meaning. This form carima is not a mistake, though, since Tolkien deliberately altered it from carina.
Helge Fauskanger suggested (LP-AM) that this sentence may be an example of an impersonal, subject-less sentence, meaning “[may it] be done your will”. There are other examples of Quenya verbs that can be used in such subject-less impersonal constructions, such as ora “[it] warns” (VT41/13), for your conscience (órë) warning you against an action.
|  I  |IIa|IIb|III|IV|V|VI| |na|á|na| |carina|cara|carima|care| |mendelya|indómelya|
This is the passive participle of the verb Q. car- “to do, make” and thus means “done, made”. In later writings, it appeared as an element in Q. lacarina “undone” (PE22/156) and in some versions of Quenya prayers from the 1950s in the phrase: na carina mendelya “thy will be done” (VT43/8-9).
Conceptual Development: In the Qenya Lexicon of the 1910s, ᴱQ. karina was glossed “finished” under the early root ᴱ√KARA “do, make” (QL/45), but in this period it seems to be an ordinary adjective rather than a passive participle of the verb. ᴹQ. karina was a passive participle in the Quenya Verbal System (QVS) from 1948, where it was glossed “made” (PE22/111).
Neo-Quenya: The meanings “done” vs. “made” depend on context. It could mean “made” in phrases like nauco-carina macil “a dwarf-made sword”, but in ordinary use it mostly likely has the sense “done, finished, ✱complete” as in samin i carina macil “I have the done/finished sword”.