There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.

Early Quenya

meril

noun. flower

A word for a “flower(s)” in the name ᴱQ. Meril-i-Turinqi “Queen of Flowers” (LT1/16; GL/46).

Conceptual Development: In Tolkien’s later writing, S./N. {Beril >>} Meril was used for the name “Rose”.

Early Quenya [GL/45; GL/46; LT1A/Meril-i-Turinqi; LT2I/Meril-i-Turinqi] Group: Eldamo. Published by

meril-i-turinqi

feminine name. Queen of Flowers

Queen of the Elves in Tol Eressea (LT1/16), her name is a combination of meril “flower”, i “the”, and turinqi “queen”, as suggested by Christopher Tolkien (LT1A/Meril-i-Turinqi).

Early Quenya [GL/46; LT1A/Meril-i-Turinqi; LT1I/Meril-i-Turinqi; LT2I/Meril-i-Turinqi; PE13/099; PE15/07; PE15/27; SMI/Meril-i-Turinqi; TII/Meril-i-Turinqi] Group: Eldamo. Published by

losille

noun. rose

A variant of ᴱQ. losse “rose” in the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s (QL/56; PME/56). In later writings lossë was associated with white flowers, not roses.

Early Quenya [PME/056; QL/056] Group: Eldamo. Published by

Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.