initiatory

adj

1. Of or pertaining to initiation.

   “The Auburn Knights of Honor will present the mock exposé of the initiatory ceremonies, given last year by the Lewiston lodge with such rich success, with new and improved details, in their hall, some time next month.”

2. Inceptive, initial, inaugural or introductory.

   “some initiatory treatises in the law”

   “Two initiatory rites of the same general import cannot exist together.”

noun

1. An introductory act or rite.