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.
esg
noun. sedge, reed
esg
noun. rustle, noise of leaves
A rejected noun meaning “rustle, noise of leaves” derived from the root ᴹ√EZGE (Ety/EZGE). Its (rejected) Quenya cognate ᴹQ. eske indicates a primitive form ✱✶eseke, despite the root form. If so, middle [e] was lost due to the Ilkorin syncope, and afterwards the [[ilk|[esk] became [esg]]].
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 meaning “sedge” derived from the root ᴹ√ESEK (Ety/ESEK), probably from a primitive form ✱✶eseke. The middle [e] was lost due to the Ilkorin syncope, and afterwards the [[ilk|[esk] became [esg]]], as suggested by Helge Fauskanger (AL-Ilkorin/esg).