English word excommune comes from English ex-, English commune

Detailed word origin of excommune

Dictionary entry	Language	Definition
ex-	English (eng)	(biology) Lacking.. Former, but still living (almost always used with a hyphen). Out of. Outside.
commune	English (eng)	(obsolete) The commonalty; the common people.. (uncountable, obsolete) communion; sympathetic intercourse or conversation between friends. A local political division in many European countries.. A small community, often rural, whose members share in the ownership of property, and in the division of labour; the members of such a community. (Christianity, intransitive) To receive the [...]
excommune	English (eng)	(obsolete, transitive) To exclude from participation in; to excommunicate.

Words with the same origin as excommune