Boris Shapiro proposed the neologism ᴺQ. linya in PPQ (PPQ) from the early 2000s, derived from ᴹ✶slinyā and inspired by N. thlein “lean, thin, meagre”. Since initial sl generally became hl in Quenya, I would update this to ᴺQ. hlinya.
Quenya
linya
pool
linya
adjective. lean, thin, meagre
hlinya
adjective. lean, thin, meagre
lóna
pool, mere
lóna (1) noun "pool, mere" (VT42:10). Variant of lón, lónë above?
nendë
pool
nendë (1) noun "pool" (NEN), "lake" (PE17:52)
linya noun "pool" (LIN1)