Chantry

n. money given to a priest for the saying of Mass for the soul of a person or persons; chapel for the saying of Mass

Chantry is the English term for the establishment of an institutional chapel on private land or within a greater church, where a priest would chant masses. The same term is also used for the endowment itself. The word derives from the Latin cantaria, meaning 'licence to sing mass'. The French term for this commemorative institution is a chapellenie
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Noun
1. an endowment for the singing of Masses
(hypernym) endowment, endowment fund
2. a chapel endowed for singing Masses for the soul of the donor
(hypernym) chapel

(n.)
An endowment or foundation for the chanting of masses and offering of prayers, commonly for the founder.
  

(n.)
A chapel or altar so endowed.
  

Endowment in a will for priests to sing masses to honor the deceased-the word was also applied to the priests who were thus employed.