Secessionist (noun)

A person who advocates or participates in the withdrawal of a certain group from a larger organization, particularly a political entity such as a state or country.

Origin:

From the latin word "secedere" meaning to withdraw or separate, and the suffix "-ist", indicating a person who practices or advocates for a particular action or belief.

Examples:

1. The Civil War began with the secession of several southern states from the United States.
2. The secessionist movement in Quebec has been a contentious issue for decades.
3. Some politicians have been labeled as "secessionists" for their vocal opposition to the European Union.
4. The Irish Republican Army has a long history of advocating for the secession of Northern Ireland from the United Kingdom.
5. The term "secessionist" is often used in a pejorative manner to describe those who seek the separation of a certain group from a larger body.