Ye princess kon h
rule by a majority, especially the belief that those constituting a simple majority should make the rules for all members of a group, nation, etc. Origin of majoritarianism.
Given in glossary of pageno.3 of pol sci.book

Majoritarianism is a belief in which majority community dominates minority
More than half

Majoritarianism is a traditional political philosophy or agenda that asserts that a majority of the population is entitled to a certain degree of primacy in society, and has the right to make decisions that affect the society.