Kiddushin, the Hebrew word for the Jewish wedding ritual, means “holiness.” The word has the same linguistic root as kadosh, meaning “holy,” and as Kiddush, the Jewish blessing said over wine or grape juice to mark holiness in time. During a Jewish wedding ceremony, when partners exchange rings they say: You are holy (“m’kudesh” or “m’kudeshet”) to me. In other words, the wedding ceremony says the partners are set apart and holy to one another.