demonetization

verb (used with object), de·mon·e·tized, de·mon·e·tiz·ing.

1. to divest (a monetary standard or the like) of value.
2. to withdraw (money or the like) from use.
3. to deprive (an issue of postage stamps) of validity by legal methods and without marking the stamps themselves.

verb (tr)

1. to deprive (a metal) of its capacity as a monetary standard
2. to withdraw from use as currency

n.

1852, from French démonétisation, from démonetiser (see demonetize).

v.

1852, from French démonitiser, from de- (see de-) + monetiser (see monetize).