IPA: /ˌdiːməˈnaɪtaɪz/
KK: /ˈdɛmənəˌtaɪz/
To take away the monetary value of something, such as a coin or currency, making it no longer usable as money.
The government decided to demonetize the old currency notes to prevent counterfeiting.
Past: demonetized
Past Participle: demonetized
Demonetize → It is formed from "de-" (meaning down or away) and "monetize" (from Latin "moneta", meaning coin or money, combined with the suffix "-ize", meaning to make). The word "demonetize" means to remove the monetary value or status from something, effectively taking it away from being used as money.
Think of 'taking away' ('de-') the 'money' ('moneta') status from something — that's why demonetize means to remove its value as currency.