secede
verb (used without object)
to withdraw formally from an alliance, federation, or association, as from a political union, a religious organization, etc.
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Mr. Trollope tells us that 'the South is seceding from the North because the two are not homogeneous.
From The Continental Monthly, Vol. 2, No 3, September, 1862 Devoted to Literature and National Policy. by Various