Definition of Mammon noun from the Oxford Advanced Learner's Dictionary

 

Mammon

 noun
noun
BrE BrE//ˈmæmən//
 
; NAmE NAmE//ˈmæmən//
 
[uncountable](formal, disapproving)
 
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a way of talking about money and wealth when it has become the most important thing in somebody’s life and as important as a god gamblers worshipping at the temple of Mammon Word Origin late Middle English: via late Latin from New Testament Greek mamōnas (see Matt. 6:24, Luke 16:9–13 in the Bible), from Aramaic māmōn ‘riches’. The word was taken by medieval writers as the name of the devil of covetousness, and revived in this sense by the English poet Milton.
See the Oxford Advanced American Dictionary entry: Mammon