A word appearing as ᴱQ. tarqin or tarqina “adj. salted, dried; (n.) salt meat” in the Qenya Lexicon of the 1910s, an adjectival form of ᴱQ. tarqa- “dry, preserve; pickle” under the early root ᴱ√TṚQṚ (QL/94). As such, it was probably originally an adjective, and its noun use for “salt meat” was based on that (= “*preserves”).

Neo-Quenya: I’d retain ᴺQ. tarquin(a) “salt meat; salted, dried, *(orig.) preserved” for purposes of Neo-Quenya based the Neo-Root ᴺ√TARKWA.