Altarage — the revenue reserved for the chaplain (altarist or altar-thane) in contradistinction to the income of the parish priest, it came to signify the fees received by a priest from the laity when discharging any function for them
Archbishop — the bishop of an archdiocese, with limited jurisdiction over his suffragan sees; an titular and largely honorary designation granted to certain bishops, often Nuncios and other members of the Holy See diplomatic corps
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
Holy See – the episcopal jurisdiction of the Bishop of Rome (who is commonly known as the Pope), and is the preeminent episcopal see of the Catholic Church, forming the central government of the Church
Limbo — an idea of speculative theology about the afterlife condition of those unbaptized who die in Original Sin rather than assigning them to the Hell of the damned. Limbo is not a formally defined doctrine of the Catholic Church
Roman Curia — "the complex of dicasteries and institutes that help the Roman Pontiff in the exercise of his supreme pastoral function for the good and service of the whole Church and of the particular Churches"
Sacrament of Penance - (commonly called Confession, Reconciliation or Penance) is the method given by Christ to the Church by which individual men and women may be freed from sins committed after receiving Baptism