East–West Schism – forcibly divided medieval Christianity’s Eastern (Greek) from its Western (Latin) jurisdiction, which later became known as the Eastern Orthodox Church and the Roman Catholic Church, respectively
Eastern Catholic Churches
East Syriac Rite
Ecclesiastical judge
Eminence – see: His Eminence
Encyclical
Eparchy
Episcopal conference
Episcopal see
Episcopal vicar
Eucharist – a Christian sacrament, generally considered to be a commemoration of the Last Supper, in which Jesus Christ shared his Body and Blood with his disciples before his betrayal and crucifixion
Exarch
Excardination — see also: Incardination
Excitator – the excitator in seminaries, monasteries and convents was the person charged with the job of awakening community members each morning.
Exclaustration
Excommunication – a medicinal religious penalty that bars the person from reception of the sacraments, the rights of office, and other privileges in the Church
Exemption
Exorcism – the practice of expelling demons from a person, place, or thing which they are believed to possess or inhabit