A ritual purification using water.

a ceremony of purification and blessing, usually carried out with specially blessed water

ritual purification. It was the policy in Eastern and Central European countries of banning individuals who served in former regimes from important governmental posts of the current government. While it was used to insure the success of democratic reforms, it also raised questions of international standards of procedural fairness as individuals were often dismissed solely based on party affiliation or political association.

The act of lustrating or purifying.

A sacrifice, or ceremony, by which cities, fields, armies, or people, defiled by crimes, pestilence, or other cause of uncleanness, were purified.