Find the word definition

Wikipedia
Indigitamenta

In ancient Roman religion, the indigitamenta were lists of deities kept by the College of Pontiffs to assure that the correct divine names were invoked for public prayers. These lists or books probably described the nature of the various deities who might be called on under particular circumstances, with specifics about the sequence of invocation. The earliest indigitamenta, like many other aspects of Roman religion, were attributed to Numa Pompilius, second king of Rome.