lucre
Lucre (noun) means Money or wealth, especially when gained dishonestly or seen as morally corrupting.
Etymology
It came into English as Middle English lūcre, lucor, lucour or lucur, meaning “gain in money, profit; money; wages; illicit gain; advantage, benefit”. This came from Old French lucre or Latin lucrum (“advantage, profit; love of gain, avarice”), which in turn came from Proto-Indo-European *leh₂w- (“gain, profit”) plus *-tlom, a variant of *-trom, a suffix forming nouns denoting tools or instruments.