What's the noun for beatificate? Here's the word you're looking for.
beatification
The act of beatifying, or the state of being beatified; especially, in the Roman Catholic Church, the act or process of ascertaining and declaring that a deceased person is one of "the blessed," or has attained the second degree of sanctity, — usually a stage in the process of canonization.
“A vexillum beati Georgii is mentioned in the Genovese annals for the year 1198, referring to a red flag with a depiction of Saint George and the dragon.”
“The arms were frequently shown with James's personal motto, Beati pacifici.”