Doriathrin
ding
noun. sound, *twang
belthronding
proper name. Belthronding
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 noun that, together with its variant dang, was glossed “sound” (Ety/DING). Given that its root form ᴹ√DING was said to be onomatopoeic, it was probably a word for a particular kind of sound, perhaps like English “twang”, which is a gloss of several derivatives of the similar root ᴹ√TING/TANG.