What is Altarage?

Legal Definition
Altarage is a term once commonly used in the Roman Catholic Church. From the low Latin altaragium — which signified 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, e.g., at marriages, baptisms, and funerals. It is also known as an honorarium, stipend, or stole-fee. It may also refer to the offering made upon an altar or the endowments for Masses for the deceased.
-- Wikipedia
Legal Definition
Eccl. law. Offerings made on the altar; all profits which accrue to the priest by means of the altar. Ayl. Par. 61; 2 Cro. 516.
-- Bouviers Law Dictionary
Legal Definition
In ecclesiastical law. Offerings made on the altar; all profits which accrue to the priest by means of the altar. Ayllffe, Parerg. 61.
-- Black's Law Dictionary
Legal Definition
The profits of a priest.
-- Ballentine's Law Dictionary