excommunicate
v. US //ˌɛkskəmˈjunəˌkeɪt// UK //ɛkskəmjˈuːnɪkˌeɪt// ex·com·mu·ni·cate
From Ecclesiastical Latin excommunicātus, perfect passive participle of excommunicō (“excommunicate”), see -ate (verb-forming suffix). By surface analysis, ex- + communicate.
From Ecclesiastical Latin, Late Latin excommunicātus, perfect passive participle of excommunicō (“put out of the community”). See -ate (adjective-forming suffix) for more. Displaced native Old English āmǣnsumian.
From a substantivation of the above adjective. See -ate (noun-forming suffix) for more.