@@@ in one place indicates a name of Arwen rather than an adjective (PE17/56).
Quenya
vanimelda
the highest word of praise for beauty
vanimelda
adjective. beautiful and beloved, elven-fair
Vanimeldë
vanimeldë
Vanimeldë fem. name (Appendix A), apparently a feminized form of the adj. vanimelda, q.v.
vanima
beautiful, fair
vanima adj. "beautiful, fair" (BAN, VT39:14) (glossed "proper, right, fair" in early "Qenya", LT1:272, though a later source says the word is used "only of living things, especially Elves and Men", PE17:150); nominal pl. vanimar "beautiful ones", partitive pl. genitive vanimálion, translated "of beautiful children", but literally meaning *"of [some] beautiful ones") (LotR3:VI ch. 6, translated in Letters:308). Arwen vanimalda "Beautiful Arwen", literally "Arwen your beauty" (see -lda for reference; changed to Arwen vanimelda in the second edition of LotR; see vanimelda).
vanima
adjective. beautiful
arwen vanimelda, namárië
Arwen beautiful and beloved, farewell
-lda
your
-lda (1) "your", 2nd person pl. possessive suffix (VT49:16). Onnalda *"your child" (VT49:42). In an earlier manuscript, this ending was used for singular "you" instead, attested in the phrase Arwen vanimalda "Arwen your beauty", sc. "O beautiful Arwen", and in meletyalda "your majesty" (WJ:369) Arwen vanimalda was however changed to Arwen vanimelda in the second edition of LotR, Tolkien reinterpreting the last word (see vanimalda). The ending for singular "your" appears as -lya elsewhere. (LotR1:II ch. 6)
-cca
your
[-cca ("k") ?"your", apparently an abandoned 2nd person plural or dual possessive (VT49:49). Compare -lca.]
-lca
your
[-lca ("k") ?"your", apparently an abandoned 2nd person plural possessive (VT49:49). Cf. -cca.]
-sta
your
-sta (1) "your", dual 2nd person possessive pronominal ending: "of you two" (VT49:45, 16), cf. -stë (q.v.) Genitive -sto in veryanwesto "of your wedding" (VT49:45) and tengwiesto "of your reading" (VT49:47), allative -stanna in parmastanna "on your book" (VT49:47). An archaic ending of similar form could also be the third person dual "of the two of them" (but according to VT49:51, the corresponding subject ending was changed to -ttë, and then the ending for "their" would presumably become -tta)
-tya,
your, thy
-tya, pronominal ending, 2nd person sg. intimate/familiar "your, thy" (VT49:16, 38, 48); compare -tyë
calwa
beautiful
calwa ("k") adj. "beautiful" (LT1:254)
mairëa
beautiful
mairëa adj. "beautiful" (of things made by art) (PE17:163). An alternative (and peculiar) form "mairia" is also implied in the source.
mírya
beautiful
mírya adj. "beautiful" (of work of art only) (PE17:165)
vanimelda adj., said to be "the highest word of praise for beauty", with two interpretations that were apparently considered equally valid and simultaneously true: "beautiful and beloved" (vanima + melda, with haplology), i.e. "movingly lovely", but also "elven-fair" (fair as an Elf) (vanima + elda). The word was also used as the second name of Arwen. (PE17:56, Second Edition LotR1:II ch. 16).