The term 'Purifies, in a way' can be solved by two crossword solutions: Baptizes (8 letters) and Desalts (7 letters). Baptizing is a religious ceremony in which a person is immersed in water or sprinkled with water to signify purification and admission into the Christian faith. Desalting is a process of removing salt from seawater or other saline solutions to make them suitable for drinking or other uses.