sánë (þ) noun "pine" (PE17:81), stem sáni- (? the primitive form is given as ¤thānĭ, which would normally give Quenya sánë/sáni-, but the Quenya noun is also cited as sáne- as if e persists before an ending).
Quenya
sánë
noun. pine
sánë
pine
aicassë
pinetree
aicassë ("k") (2) noun "pinetree" (GL:17; this "Qenya" word is evidently obsoleted by #1 above.)
sono
noun. pine
sononel
noun. pine-needle
sónë
noun. pine tree
súcë
noun. resinous tree, pine or fir
cinta
small
cinta adj. "small" (PE17:157)
cinta
adjective. small
inya
small
inya (2) adj. "small" (LT1:256; this "Qenya" word may be obsoleted by # 1 above)
mintë
small
mintë adj. "small" (VT45:35)
mitsa
small
mitsa adj. "small" (VT45:35) Another synonym from the same source, mitra, looks unusual for a Quenya word (because of the medial cluster tr)
nincë
small
*nincë (ninci*-) ("k")adj. "small". The form is given as "ninki" with the last vowel marked as short; this is probably the etymological form that would underlie Quenya nincë. The word is said to mean "small" with "good senses"; contrast nípa**, *nimpë. (VT48:18)
nitya
small
#nitya adj. "small" (VT48:15, PM:365)
níca
small
níca ("k")adj. "small". The word is said to mean "small" with "good senses"; contrast nípa, *nimpë. (VT47:26, VT48:18)
pinilya
small
pinilya adj. "small" (MC:220; this is "Qenya")
In notes on Words, Phrases and Passages from the Lord of the Rings from the late 1950s or early 1960s, Tolkien had Q. {sāne >>} th-, sāne- “pine” derived from {✶stāna >>} ✶thānĭ-, but this note was deleted (PE17/81). It was replaced by a marginal note in which S. thôn “pine” was derived from ✶thŏno.
Neo-Quenya: In light of the new primitive form, I would update the Quenya word to ᴺQ. sono [þ] “pine” for purposes of Neo-Quenya. Petri Tikka instead proposed ᴺQ. sónë [þ] in PPQ (PPQ) from the early 2000s inspired only by S. thôn “pine”, before the above primitive forms were published in 2007.
Conceptual Development: The Early Qenya “pine” word was ᴱQ. aiqaire “fir or pine” in the Qenya Lexicon of the 1910s, an elaboration of ᴱQ. aiqa “steep” (QL/29). It became ᴱQ. aikasse “pine-tree” in the Gnomish Lexicon of the 1910s, a cognate to G. aigos and derivative of primitive ᴱ✶aikasse (GL/17). This in turn became ᴱQ. aikor “pine-tree” in the Early Noldorin Dictionary of the 1920s, derived from ᴱ✶aikos-sa and still a cognate to G. aigos (PE13/158).