Meaning of treasury of merits

treas'ury of mer'its

Pronunciation: [key]
— Rom. Cath. Ch. Rom. Cath. Ch.
  1. the superabundant store of merits and satisfactions, comprising those of Christ, the Virgin Mary, and the saints. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.