Gnomish
idrisaith
noun. avarice, excessive love of gold and gems and beautiful and costly things
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
An element in the name Cûm an-Idrisaith “Mound of Avarice” in earliest The Lost Tales of the 1910s (LT2/223). The Gnomish Lexicon contrasted it with avosaith “avarice = money-greed”, whereas idrisaith meant “excessive love of gold and gems and beautiful and costly things” (GL/50). It was a combination of idri “treasure” and saith “hunger”.