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

tuksainenya

ordinal. thousandth

A variant word for “thousandth” in the Early Qenya Grammar (EQG) of the 1920s based on ᴱQ. tuksainen “thousand” = “✱hundred tens” (PE14/51, 83).

Early Quenya [PE14/051; PE14/083] Group: Eldamo. Published by

maisinya

ordinal. thousandth

The Early Qenya Grammar (EQG) of the 1920s had ᴱQ. humetya “✱thousandth” in its manuscript version (PE14/51) but maisinya “thousandth” in its typescript version (PE14/83), reflecting the change of ᴱQ. húme “thousand” to ᴱQ. maite “thousand”.

Early Quenya [PE14/083] 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.