A word appearing as ᴱQ. filqe “fern” in the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s, with variants filinqe and (dialectical) filimpe [probably Solosimpi/Telerin], all derived from the early root ᴱ√FILI “fine, thin” (QL/38).

Conceptual Development: The Declension of Nouns (DN) of the early 1930s had ᴹQ. filet (filek-) with glosses {“fern” >>} “cobweb” (PE21/33 note #123), and in later writings filit (filik-) was a word for “small bird, sparrow” (Ety/PHILIK; PE21/56).

Neo-Quenya: Since there are no later non-rejected words with this meaning, I would retain ᴺQ. filquë “fern” for purposes of Neo-Quenya.