A verb for “steal” in the Qenya Lexicon of the 1910s based on the early root ᴱ√NAQA of similar meaning (QL/64).
Early Quenya
pili-
verb. to steal
pilin
noun. feather; arrow
naqa-
verb. to steal
pilna
noun. arrow
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!
A verb appearing as ᴱQ. pili- “steal” in the Qenya Lexicon of the 1910s under the early root ᴱ√PILI “rob” (QL/74).
Neo-Quenya: I would retain ᴺQ. pil- “to steal, ✱rob” for purposes of Neo-Quenya as the best of the attested verbs meaning “steal”. For example, this verb was used in Helge Fauskanger’s NQNT (NQNT).