To lay under an interdict; to cut off from the enjoyment of religious privileges, as a city, a church, an individual.
A prohibition of the pope, by which the clergy or laymen are restrained from performing, or from attending, divine service, or from administering the offices or enjoying the privileges of the church.
The ecclesiastical banning in an area of all sacraments except for baptism and extreme unction. In general it does not ban high feast days. Used to force persons/institution/community or secular lords to a view dictated by the church/pope. (MEDIEV-L. Medieval Terms)