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

mingwe

noun. butter

The word for “butter” in the Qenya Lexicon of the 1910s was ᴱQ. manya derived from the early root ᴱ√MṆGṆ (QL/62) with the cognate G. mang “butter” from the contemporaneous Gnomish Lexicon (GL/56). A similar form ᴱQ. mingwe “butter” appeared in Early Qenya Word-lists of the 1920s (PE16/141, 145), along with an unrelated form ᴱQ. úle “butter” that also appeared as an adjective in the phrase masta {mingwea >>} úlea]] “bread and butter” (PE16/141). In contemporaneous Early Noldorin Word-lists of the 1920s, the Qenya word for “butter” was ᴱQ. telpe rather than having its usual meaning “silver” as in earlier and later writings (PE13/154).

Neo-Quenya: Of these forms, I prefer ᴺQ. manya for “butter” for purposes of Neo-Quenya since it has the clearest (Neo-Sindarin) cognate ᴺS. mang. I assume these words are derived from a Neo-Root ᴺ√MANGYA where ngy became ng in (Old) Sindarin but became ndy in Quenya and then developed into ny.

Early Quenya [PE16/141; PE16/145] Group: Eldamo. Published by

manya

noun. butter

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

telpe

noun. butter

A Qenya word for “butter” in Early Noldorin Word-lists of the 1920s from primitive ᴱ✶t’lḗpe (PE13/154), a temporary repurposing of the form usually used for “silver”, which in this document was ᴱQ. telqe from primitive ᴱ✶kelekwé (PE13/140).

Early Quenya [PE13/154] Group: Eldamo. Published by

úle

noun. butter

Early Quenya [PE16/141] 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.