liberum veto

Latin

liberum veto

1. (historical) A parliamentary rule in the Polish-Lithuanian Commonwealth, allowing any dissenting member of the legislature to force an immediate end to the current session and nullify any legislation that had already been passed.
2. (by extension) Any system in which a single dissenting member can unilaterally block an action.

   The US, Russia, UK, France, and China have liberum veto power in the UN Security Council, allowing them to shield themselves and their allies from UN oversight.

Borrowed from Latin liberum veto.

• IPA^(key): /liˈbɛ.rum ˈvɛ.tɔ/
• Rhymes: -ɛtɔ

liberum veto n (indeclinable)

1. (historical, law, politics) liberum veto (parliamentary rule in the Polish-Lithuanian Commonwealth, allowing any dissenting member of the legislature to force an immediate end to the current session and nullify any legislation that had already been passed)

• liberum veto in Wielki słownik języka polskiego, Instytut Języka Polskiego PAN
• liberum veto in Polish dictionaries at PWN