A noun in the Qenya Lexicon of the 1910s given as ᴱQ. {tunda >>} tundo “firewood, fuel” and derived from the root ᴱ√TUŘU [TUÐU] (QL/96).
Neo-Quenya: I think this word may be salvaged in Neo-Quenya as ᴺQ. tundo based on a Neo-Root ᴺ√TUD.
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.
tunda-
verb. to kindle
tunda
noun. hole
tundo
noun. firewood, fuel
sat
noun. hole
turu- Archaic
verb. to kindle
tyulin
adjective. tall
A word for “tall” in the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s derived from the early root ᴱ√TYULU of the same meaning (QL/50; PME/50).
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 in the Qenya Lexicon of the 1910s glossed “kindle” with variants tunda- and turu- (the latter marked † as archaic), appearing under the early root ᴱ√TUŘU [TUÐU] of the same meaning (QL/96).