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.
mindon
noun. turret, tower
lante no lanta-mindon
falling upon fallen towers
ambo
noun. hill
amun Archaic
noun. hill
oro
noun. hill
oron
noun. hill
tirin
place name. Tower
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 eighth line of the Oilima Markirya poem (MC/214). The first word is the aorist tense of the verb lant- “to fall”, its subject being the “old darkness” (aire móre) of the previous phrase. This is followed by the preposition no “upon” with a compound of the adjective lanta “fallen” with the noun mindon “tower”, loosely translated as plural “towers” in the English.
Decomposition: Broken into its constituent elements, this phrase would be:
> lant-e no lanta-mindon = “✱fall-(aorist) upon fallen-tower”