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.
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
tunda
noun. hole
tunda-
verb. to kindle
tundo
noun. firewood, fuel
sat
noun. hole
turu-
verb. to kindle
tyulin
adjective. tall
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).