Early Quenya
sahta-
verb. to split
sahta-
verb. it is hot
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 verb appearing as ᴱQ. sahta- “to split” in Early Qenya Phonology of the 1920s derived from primitive ᴱ✶stak+ta- (PE14/66).
Neo-Quenya: Since the root ᴹ√STAK “split, insert” survives in Tolkien’s later writings, I think ᴺQ. sahta- “to split” can be retained for purposes of Neo-Quenya. It does conflicted with the later verb Q. sahta- “induce” from the 1950s, but I think the two can coexist.