Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!

Qenya 

ranko

noun. arm

A noun for “arm” in The Etymologies of the 1930s derived from primitive ᴹ✶ranku under the root ᴹ√RAK “stretch out, reach” (Ety/RAK).

Conceptual Development: The word ᴱQ. rā “arm” appeared Qenya Lexicon of the 1910s under the early root ᴱ√RAHA “stretch forward”, along with a variant rakta (QL/78). The Early Qenya Grammar and English-Qenya Dictionary of the 1920s instead had ᴱQ. ranko “arm” (PE14/76; PE15/69), a form which reappeared in The Etymologies of the 1930s (see above).