v. [UN-2 4.] trans. To deprive of membership. Also Unmembering vbl. sb.
a. 1658. Durham, Comm. Revelation, II. iii. (1680), 73. This unmembering or unchurching of a Person.
1683. T. Hunt, Def. Charter Lond., 41. Every mans particular consent was necessary to make him a member of any society, and so it is to unmember him.
1847. Webster.