Early Primitive Elvish
faya
root. *free
fal̃a
root. *free
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.
A root in the Qenya Lexicon of the 1910s with various Qenya derivatives such as ᴱQ. fainu- “release” and ᴱQ. fairie “freedom” (QL/37). There are words in the contemporaneous Gnomish Lexicon of similar form and meaning, such as G. fair “free, unconstrained” and G. faith “liberty” (GL/34). Of interest is that Tolkien gave this root as an example of a hypothetical ancient gradation of l in different positions of articulation in the early Qenya Phonology, having the most ancient form ᴱ√FAL̃A (PE12/16). There are no signs of this root in Tolkien’s later writing.