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.
dar
root. stay, wait, stop, remain
tap
root. stop
A root in The Etymologies of the 1930s glossed “stop” with derivatives like ᴹQ. tampa “stopper” and ᴹQ. tape “he stops, blocks” (Ety/TAP; EtyAC/TAP). The word Q. tapta “impeded” from notes associated with the Quendi and Eldar essay of 1959-60 was probably related (VT39/17), indicating the root’s ongoing validity.
mart
adverb. homewards
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 root in The Etymologies of the 1930s glossed “stay, wait, stop, remain” with derivatives N. dar- “stop, halt” and N. dartha- “wait, stay, remain, last, endure” (Ety/DAR). Given the appearances of the command S. daro in The Lord of the Rings, unglossed but clearly meaning “stop!” or “halt!”, this root almost certainly survived in Tolkien’s later conceptions (LotR/342). It was probably also the basis of the words Q. lár/S. daur “league”, which Tolkien said originally meant “stop, pause” (UT/279).