What is the term for an amount higher than a simple majority, required in some cases for a proposal to win?

Supermajority

Explanation:

A supermajority is a term used to explain what it entails for a proposal to attain a particular level of support which is a number that must be above half the number of the majority. Supermajority is also known as qualified majority.

In history, the rule of supermajority was first used in 100s BC in ancient Rome.

it is called "SUPERMAJORITY"

Explanation: Supermajority can also be called supra-majority or qualified majority. It is the term use to describe a higher number of support to a proposal. It is also the requirement for a proposal to gain a specified level of support, which is more than halve of the number of vote to the proposal.

This is used in the Congress to approve or disapprove a request from a member. It is also used in the board meetings, to approve or disapprove a decision from a member. Supermajority as its name implies is the strongest opinion of a group of people to accept or reject a Proposal towards an action.

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