A Qenya noun in the Gnomish Lexicon of the 1910s, cognate to G. fô “snow” (GL/35).
Early Quenya
losse
noun. rose; (white) flower
lossa
adjective. white
ondoli losse karkane
the white rocks snarling
fáwe
noun. snow
niqis
noun. snow
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 fifteenth line of the Oilima Markirya poem (MC/213). The first word is the plural of ondo “rock” modified by the plural of the adjective lossa “white”, with the “bare stem” infinitive form of the verb karka- “to snarl”, as suggested by Gilson, Welden, and Hostetter (PE16/84, notes on line #10 and #11), apparently functioning as either an active-participle or a verbal object.
Decomposition: Broken into its constituent elements, this phrase would be:
> ondo-li loss-e karka-ne = “✱rock-(plural) white-(plural) snarl-ing”