mam·mon \ˈmamən\noun (-s) Usage: often capitalized Etymology: Late Latin mammona, from Greek mamōna, from Aramaic māmōnā riches : material wealth or possessions especially having an evil power or debasing influence : wealth, money < you cannot serve God and mammon — Mt 6:24 (Revised Standard Version) > < materialism was in the saddle; Mammon ruled the hearts and minds of men — C.I.Glicksberg >