rite,
ritual an established ceremony prescribed by a religion; "the rite of baptism"
= synonym
= antonym
= relatert ord
Wiktionary
Substantiv
betrothal -
The act of betrothing, or the fact of being betrothed; a mutual promise, engagement, or contract for a future marriage between the persons betrothed; betrothment; affiance.
Wikipedia
Betrothal (also called espousal) is a formal state of engagement to be married. Historically betrothal was a formal contract considered as binding as marriage, and a divorce was necessary to terminate a betrothal. Betrothed couples were regarded legally as husband and wife - even before their wedding and physical union.