Lat. beatus, blessed
In the Roman Catholic church, beatification is the fourth step in the canonization process of a saint. It amounts to a statement or a “blessing” which allows the church to believe that this person is indeed in heaven. Once the blessing has occurred, the beatified person may be called “Blessed” (abbr. BI).
Note from Keith - saying “bless you” after a sneeze doesn’t count for anything in the long run apparently.