INITIATORY
inaugural, initiative, initiatory, first, maiden
(adjective) serving to set in motion; “the magazine’s inaugural issue”; “the initiative phase in the negotiations”; “an initiatory step toward a treaty”; “his first (or maiden) speech in Congress”; “the liner’s maiden voyage”
Source: WordNet® 3.1
Adjective
initiatory (comparative more initiatory, superlative most initiatory)
Of or pertaining to initiation
inceptive, initial, inaugural or introductory
Noun
initiatory (plural initiatories)
An introductory act or rite.
Source: Wiktionary
In*i"ti*a*to*ry, a.
1. Suitable for an introduction or beginning; introductory;
prefatory; as, an initiatory step. Bp. Hall.
2. Tending or serving to initiate; introducing by instruction, or by
the use and application of symbols or ceremonies; elementary;
rudimentary.
Some initiatory treatises in the law. Herbert.
Two initiatory rites of the same general import can not exist
together. J. M. Mason.
In*i"ti*a*to*ry, n.
Definition: An introductory act or rite. [R.]
Source: Webster’s Unabridged Dictionary 1913 Edition