se·cede. (sĭ-sēd′) intr.v. se·ced·ed, se·ced·ing, se·cedes. To withdraw formally from membership in a state, union, or other political entity. [Latin sēcēdere, to withdraw : sē-, apart; see s (w)e- in Indo-European roots + cēdere, to go; see ked- in Indo-European roots.] More @Wikipedia
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