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.
ollo
noun. cliff, seaward precipice
aiko
noun. cliff
A noun appearing as ᴱQ. aiko (aiku-) “cliff” in the Qenya Lexicon of the 1910s, apparently a noun variant of ᴱQ. aiqa “steep” appearing nearby (QL/29). Since ᴹQ. aiqa “steep” continued to appear in Tolkien’s later writings (Ety/AYAK), perhaps this word can be salvaged for Neo-Quenya writing as ᴺQ. aico (aicu-).
pelko
noun. leg
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 noun in the Gnomish Lexicon of the 1910s, a cognate of G. ol “cliff, seaward precipice” and apparently of similar meaning (GL/62). It appeared as an element in the name ᴱQ. Eriollo “Ironcliffs” also appearing in the Gnomish Lexicon (GL/19; LT1A/Eriol), though in the tales themselves this name was {Erenol >>} ᴱQ. Evadrien “Coast of Iron” (LT2/313, 334). It might be related to the root ᴱ√OLO “tip” (QL/69).