secede
v.
1702, "to leave one's companions," from Latin secedere "go away, withdraw, separate; rebel, revolt" (see secession). Sense of "to withdraw from a political or religious alliance of union" is recorded from 1755, originally especially in reference to the Church of Scotland. Related: Seceded; seceding; seceder.
〔李〕[se-=apart 离；ced=to go走；-e⇒“to go apart 离开”→] v. withdraw formally from an organization 退出；脱离
〔李〕[se-=apart分离；ced=to go走；-e→] v. go apart（from member-ship of an organization）脱离，退出（团体）