Altarage is a term once in common use 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, funerals. It was also termed
honorarium,
stipend, and
stole-fee.
Reference