Adullamite
/ (əˈdʌləˌmaɪt) /
noun
a person who has withdrawn from a political group and joined with a few others to form a dissident group
Word Origin for Adullamite
C19: originally applied to members of the British House of Commons who withdrew from the Liberal party (1866); alluding to the cave of
Adullam in the Bible, to which David and others fled (1 Samuel 22: 1–2)