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Wiktionary
demonetise

alt. To remove the status of legal tender from a coin etc. and remove it from circulation. vb. To remove the status of legal tender from a coin etc. and remove it from circulation.

WordNet
demonetise

v. deprive of value for payment; "demonetize a coin" [syn: demonetize]

Usage examples of "demonetise".

But these days it seemed to me that sex between Sundara and me was irrelevant, inappropriate, an obsolete interchange in a demonetised currency.