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).
Early Quenya
tunda
noun. hole
tundo
noun. firewood, fuel
tunda-
verb. to kindle
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).
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.