Middle Primitive Elvish
ting
root. ting (onomatopoeic)
tang
root. ting (onomatopoeic)
tung
root. ting (onomatopoeic)
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.
An onomatopoeic root with variants ᴹ√TING and ᴹ√TANG appearing in The Etymologies of the 1930s with derivatives ᴹQ. tinge or tango “twang”, ᴹQ. tinga- “to twang”, and N. tang “bowstring” (Ety/TING). The entry had a reference to a deleted variant ᴹ√THING (EtyAC/TING) and another variant ᴹ√TUNG was listed in the entry ᴹ√DING (EtyAC/DING). In the Quenya Verbal System (QVS) from 1948 Tolkien gave the root ᴹ√TAÑ as the basis for the verb ᴹQ. tanga- “twang”, which is probably another instance of this root (PE22/103).