quildë, quillë noun "quiet, rest, hush" (GL:23, QL:78)
Primitive elvish
kwil
root. colour, colour, color
kwilid
root. quiet
kwilit
root. belt, girdle
Quenya
quilta
noun. belt, girdle
quilda
quiet, hushed, still
quildë
quiet, rest, hush
Sindarin
crui
noun. colour
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
Early Primitive Elvish
qili
root. *colour
An unglossed root in the Qenya Lexicon of the 1910s with derivatives having to do with colour and adornments like ᴱQ. qile “hue, colour” and ᴱQ. qilya- “adorn, embellish, colour” (QL/77). It had derivatives in the contemporaneous Gnomish Lexicon as well such as G. cwil “hue, tint” (GL/28). As there are no better options for a generic words for “colour” in Tolkien’s later writing, I recommend positing a Neo-Eldarin root ᴺ√KWIL “colour” to preserve these Early Qenya words.
Early Quenya
qilta
noun. belt, girdle
A noun appearing as ᴱQ. qilta “girdle, belt” in the Qenya Lexicon of the 1910s under the early root ᴱ√QḶTḶ (QL/78). It also appeared with the gloss “belt” in the contemporaneous Poetic and Mythological Words of Eldarissa (PME/78).
Neo-Quenya: For purposes of Neo-Quenya, I would retain ᴺQ. quilta “belt” from a Neo-Root ᴺ√KWILIT, but for “girdle” I would use Q. lesta (WJ/369).
Gnomish
crui
noun. colour
Qenya
laite
noun. colour
qilir
noun. quiet
Middle Primitive Elvish
kuilez
noun. quiet
quilda adj. "quiet, hushed, still" (QL:78)