Early Quenya
kuluin
noun. goldfish
kulu
noun. gold
kuluina
adjective. golden
kuluksa
adjective. golden
kululta
adjective. of gold
kuluva
adjective. of gold
kuluvoite
adjective. golden
laurea
adjective. golden
laurina
adjective. golden
A noun appearing as ᴱQ. kuluin (kuluind-) “goldfish” in the Qenya Lexicon of the 1910s, a combination of ᴱQ. kulu “gold” and some variant of ᴱQ. ingwe “fish” (QL/49).
Neo-Quenya: For purposes of Neo-Quenya I would update this to ᴺQ. cullingwë as a combination of √KUL “gold” and Q. lingwë “fish”.