Middle Primitive Elvish
rak
root. stretch out, reach
d’rāk
noun. d’rāk
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 first iteration of this root was as ᴱ√RAHA “stretch forward” in the Qenya Lexicon of the 1910s with derivatives like ᴱQ. rá “arm” and ᴱQ. ráma “wing” (QL/78). It also had derivatives in the contemporaneous Gnomish Lexicon such as G. rath “the full arm” and G. ram “wing, pinion” (GL/64-65). In The Etymologies of the 1930s, “wing” words were based on ᴹ√RAM (Ety/RAM), but “arm” words were derived from ᴹ√RAK “stretch out, reach”: ᴹQ. ranko/N. rhanc “arm” along with ᴹQ. rangwe/N. rhaew “fathom” (Ety/RAK). The relationship to earlier and later ᴱ√RAKA/✱√RAK “break”, if any, is unclear.