ILKORIN WORDLIST with etymological notes
Ancestral forms "reconstructed" by Tolkien himself are not asterisked. In the primitive forms, long vowels are marked by circumflexes; the sources use macrons instead.
-a genitive ending, seen in Tor Tinduma "King of Twilight", a title of Thingol (cf. tindum "twilight"😉. The primitive Common Eldarin genitive ending was -hô > -ô, derived from an "ancient adverbial element" HO meaning "away, from, from among" (WJ:368). The corresponding entry in the far earlier Etymologies seems to be 3O (3Ô) "from, away, from among, out of" (LR:360). Could primitive -ô come out as -a in Ilkorin? There are a few words where -ô may seem to develop in such a way (see adda, broga), but normally, final -ô is lost like other final vowels. - In the plural genitive ending -ion, the "genitival" element (< 3O or HO) appears as o; see -ion.
adar "father", pl. edrin. Derived from a stem ATA, itself simply defined as "father" (LR:349). The Primitive Quendian form is given as atar, that must be seen simply as an extension of the stem itself. As in Sindarin, unvoiced stops (p, t, k) are voiced (to b, d, g) following a vowel, hence atar > adar. - The plural form edrin shows umlaut a > e, caused by the i of the plural ending -in (concerning which see separate entry). Also notice the syncope of the second vowel of adar in the inflected form. For similar contractions, compare aman pl. emnin, boron pl. burnin, gangel pl. genglin (q.v.)
adda "father" (possibly hypocoristic, = *"dad"😉. Derived from the same stem ATA as adar above (LR:349). It would be tempting to believe that this is the cognate of Quenya atto, primitive *attô, evidently the stem ATA with a medial fortification t > tt and the masculine ending -ô. If so, the form adda would suggest that final -ô becomes -a in Ilkorin. Compare broga "bear" from primitive morókô - but in other examples, final -ô is lost without trace (see for instance benn, ber). Moreover, the word adda would seem to indicate that following a vowel, also double *tt becomes voiced dd in Ilkorin. Contrast Sindarin, in which language only single t would be voiced in this position, while *tt becomes th instead - cf. for instance peth "word" from earlier kwetta. However, another Ilkorin word does show a Sindarin-like development of *tt: brith "gravel" from b'rittê. It may be, then, that Ilkorin adda is not really the cognate of Quenya atto, but rather an affectionate form based on adar "father", formed later and not directly descended from the primitive language. If we see adda as the cognate of High-elven atto, we would have to assume that Tolkien changed his mind about the phonological evolution of Ilkorin while he was writing the Etymologies (which is of course not inconceivable; the editor in LR:346 refers to "divergent forms...between one part of the Etymologies and another"😉.
adu, also ado, "double". Derived from a stem AT(AT), which Tolkien defined as "again, back" (LR:349). It would seem that this is basically a simple stem AT that often appears as ATAT, the reduplication symbolizing the repetition. Adu, ado must come from simple AT, though. These Ilkorin words for "double" are apparently cognates of Quenya atwa of similar meaning. The primitive form, transparently meant to be *atwâ, combines the stem AT with the adjectival ending -wâ (concerning this ending, cf. for instance narwâ "fiery red", derived from the stem NAR1 "flame, fire", LR:374; see also alch, laig). After the loss of primitive final -â, the final semi-vowel of the resulting form *atw apparently turned into a full vowel -u, *atu then becoming adu after the voicing of post-vocalic *t (cf. adar from atar). It would seem that adu subsequently became ado (a similar change of final -u to -o occurred in Common Eldarin, but this Ilkorin development must be later). That this change occurred only when -u was final is suggested by the compound Adurant (rather than *Adorant) for *"Doublecourse", name of a river in Ossiriand which for a distance had divided streams (concerning the second element, see rant).
alch "swan" (ÁLAK). Primitive form given as alk-wâ, derived from a stem ÁLAK "rushing" (LR:348). Alk-wâ would seem to be an adjectival formation (concerning the adjectival ending -wâ, see ado above). The primitive word was evidently an adjective with the same meaning as the stem: "rushing", later used as a noun "rushing (one)" and applied to an animal. Tolkien may have imagined that after the loss of the final vowel, the now final kw was de-velarized to k, the resulting form *alk then turning into alch because p, t, k following a liquid became spirants f, th, ch (= kh, [x]), just as in Sindarin (see UT:265, footnote). Compare words like Balthor, erdh, salch (but contrast the word tolda < tultâ-, where lt mysteriously becomes ld instead of lth; perhaps this is because this cluster lt occurred already at the very oldest stage, whereas the other combinations here listed arose only later, as a result of syncopes or compounding). Notice that kw was not de-velarized initially, so we have for instance cwess "down" (noun) from primitive kwessê (LR:366 s.v. KWES). In this respect at least, Ilkorin cannot function as a dialect of Sindarin after Tolkien's revisions of the history of the Elvish languages: In Sindarin, indeed in the entire Lindarin branch of the Elvish language family, primitive kw very early became p (WJ:375, cf. WJ:407 note 5). Alk-wâ so early became *alpâ that if we are to make Ilkorin a Lindarin language according to Tolkien's later ideas, this word would have had to become *alf, just like in normal Sindarin (in that language preferably spelt alph). Compare salch.
aman "mother", pl. emnin (obvious misreading "emuin" in the published LR). Derived from a stem AM1 (LR:348), simply defined as "mother". Aman must represent an "extended" stem *aman, sc. AM1 with suffixation of the stem-vowel (by a Quenya term ómataina, vocalic extension) and a suffixed consonant -n. Compare boron, q.v., from BOR. The plural form emnin shows the same contraction and umlaut as in the examples adar pl. edrin, gangel pl. genglin.
Argad "outside the fence", lands outside Doriath (the "fence" obviously being the Girdle of Melian). Also explicitly Argador "land outside the fence", sc. outside Doriath. (The forms Argad and Argador are mentioned in LR:349 s.v. AR2, Argador also in LR:358 s.v. GAT(H).) Concerning dor "land", see separate entry; as an Ilkorin word, the element gad "fence" is attested in this compound only, but Doriathrin has the same word: See gad in the wordlist appended to the article about Doriathrin for etymological discussion. The element ar- "outside" that is prefixed to Argad, Argador is derived from the stem AR2 (LR:349), not itself defined but probably meaning much the same as the Quenya preposition ara "outside, beside", the first word listed in this entry in the Etymologies. Compare the entry ar- in the Silmarillion appendix. In Etym it is stated that in Quenya and Ilkorin alike, this element was "purely local in sense", referring simply to spatial relationships. This was evidently the original meaning of this element as well, since it is further said that in Sindarin ("Noldorin"😉, this element developed a privative sense ("without"😉, as in arnediad (arnoediad) "without reckoning, numberless". Ilkorin and Quenya thus preserve the original meaning of this prefix.
arn "red". Derived from a stem YAR, defined as "blood" (LR:400, the Ilkorin word for blood, ôr, is indeed derived from the same stem). The primitive form is undoubtedly meant to be *jarnâ (*yarnâ) with the common adjectival ending -nâ (sometimes used to derive passive participles); the primitive word must clearly have implied "bloody" or "blood-red". Perhaps this association would no longer be so strong in Ilkorin, the phonological evolution having made the words for "red" and "blood" somewhat divergent in form; the words arn and ôr are not as obviously connected as their primitive counterparts *jarnâ and *jara. Notice that the final -â of *jarnâ is lost without trace in arn; more remarkably, the initial j has also disappeared (as in ôr "blood"😉.
Aros name of river with reddish water, the southern river of Doriath. Derived from the same stem YAR "blood" as arn "red" above (LR:400). The "Noldorin"/Sindarin cognate is given as iaros, suggesting that the stem YAR as such (rather than a derivative like *jarnâ) was once prefixed in this word. The second element of the name, -os, is obscure. See the name of another river, Thalos, for some thoughts about this ending.