Emily Dickinson Lexicon

IN-IT-I-A'TION, n. [L. initiatio.]

1. The act or process of introducing one into a new society, by instructing him in its principles, rules or ceremonies; as, to initiate a person into a Christian community.
2. The act or process of making one acquainted with principles before unknown.
3. Admission by application of ceremonies or use of symbols; as, to initiate one into the visible church by baptism. Hammond.