動詞 excommunicate:

1. exclude from a church or a religious community
   同義詞：unchurch, curse
2. oust or exclude from a group or membership by decree

1. The man was excommunicated from the Christian Church.
   那人被驅(qū)逐出基督教會。

ex.com.mu.ni.cate

v.tr.（及物動詞）
ex.com.mu.ni.cat.ed,ex.com.mu.ni.cat.ing,ex.com.mu.ni.cates
To deprive of the right of church membership by ecclesiastical authority.
開除教籍：被教會方面取消做教友的權(quán)力
To exclude by or as if by decree from membership or participation in a group.
把…逐出：被法令或好象被法令拒絕享有一個組織的會員資格或加入組織
n.（名詞）

A person who has been excommunicated.
被逐出教會的人
adj.（形容詞）

Having been excommunicated.
已被逐出教會的

來源：
Middle English excommunicaten
中古英語 excommunicaten
from Late Latin excommônic3re excommônic3t-
源自 后期拉丁語 excommônic3re excommônic3t-
Latin ex- [ex-]
拉丁語 ex- [前綴，表.前任的，從前的.]
Latin commônic3re [to share] from Latin commônis [common] * see common
拉丁語 commônic3re [分享] 源自 拉丁語 commônis [普通的] *參見 common

【引伸】
ex.commu.nica.tive
ex.commu.nica.tor
n.（名詞）