Early Quenya
túma
adjective. moving
mandu túma
the abyss moving
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.
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.
The twenty first line of the Oilima Markirya poem (MC/214). The first word is mandu “abyss” (more often translated “hell”) followed by the adjective túma “moving”.
Decomposition: Broken into its constituent elements, this phrase would be:
> mandu túma = “✱abyss moving”