Quenya 

culo

gold

[culo, culu ("k")noun "gold" (substance)] (KUL, VT49:47; the word culu_ also occurred in early "Qenya" [LT1:258], but in the Etymologies it was struck out; the regular Quenya word for "gold" is apparently _malta. In another version, culo meant "flame" [VT45:24], but this is apparently also a word Tolkien abandoned.)