Excommunicate

v. t. [imp. & p. p. EXCOMMUNICATED; p. pr. & vb. n. EXCOMMUNICATING.] [Lat. excommunicare, excommunicatum, to put out of the community, from ex, out of, and communicare; Fr. excommunier, Pr. excomeniar, Sp. excommunigar, excomulgar, It. escomunicare. See COMMUNICATE.]

I. To expel from communion; to eject; especially, to eject from the communion of the church by an ecclesiastical sentence, and to deprive of spiritual advantages; as, to excommunicate notorious offenders.

2Sense 2. To forbid by an ecclesiastical sentence; to denounce excommunication against.

Martin the Fifth ... was the first that excommunicated the reading of heretical books. Milton.