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

silk(in)a

adjective. rich, fat, glossy

An adjective in Qenya Lexicon of the 1910s with variants silka, silkina and glosses “rich, fat, glossy” derived from the early root ᴱ√SḶKḶ “rich, lush” (QL/86).

Early Quenya [QL/086] Group: Eldamo. Published by

aute

adjective. rich

An adjective for “rich” in the Qenya Lexicon of the 1910s under the early root ᴱ√AW̯A (QL/33). The same root also had ᴱQ. avarna “very rich”, but this form was deleted.

Early Quenya [LT2A/Ausir; QL/033] Group: Eldamo. Published by

malke

adjective. rich

An adjective for “rich” in the Qenya Lexicon of the 1910s under the early root ᴱ√MḶKḶ “possess” (QL/62).

Early Quenya [QL/062] Group: Eldamo. Published by

wessa

adjective. rich

This word appeared in Early Noldorin Word-lists of the 1920s as ’wessa equated to G. gwes “rich”, probably its Qenya cognate.

Early Quenya [PE13/137] 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.