Fungible:
(adj) of goods or commodities; freely exchangeable for or replaceable by another of like nature or kind in the satisfaction of an obligation
(noun) a commodity that is freely interchangeable with another in satisfying an obligation [Vocabulary.com]
Noted in “Appeals court overturns conviction of Sheldon Silver,” Matthew Hamilton, The Times Union (Albany, NY):
“Because money is fungible, once funds obtained from illegal activity are combined with funds from lawful activity in a single account, the ‘dirty’ and ‘clean’ funds cannot be distinguished from each other,” the decision states. “As such, ‘(a) requirement that the government trace each dollar of the transaction to the criminal, as opposed to the non‐criminal activity, would allow individuals effectively to defeat prosecution for money laundering by simply commingling legitimate funds with criminal proceeds.'”
