The word for “cheese” in the Qenya Lexicon of the 1910s was ᴱQ. tyur (tyurd-) derived from the early root ᴱ√TYURU “curdle” (QL/50). This became ᴱQ. tyurme “cheese” in Early Qenya Word-lists of the 1920s (PE16/141).
Neo-Quenya: I’d use ᴺQ. tyurmë “cheese” for purposes of Neo-Quenya, derived from a Neo-Root ᴺ√KYUR.
A verb appearing as ᴱQ. tyuku- “to chew” with variant tyukta- in the Qenya Lexicon of the 1910s derived from the early root ᴱ√TYUKU of the same meaning (QL/50).
Neo-Quenya: I’d retain this verb as ᴺQ. tyuc- “chew” for purposes of Neo-Quenya, derived from the Neo-Root ᴺ√TYUK.