ayatollah

Ayatollah is an honorific title for high-ranking Twelver Shia clergy in Iran that came into widespread usage in the 20th century. Originally used as a title bestowed by popular/clerical acclaim for a small number of the most distinguished marja' at-taqlid mujtahid, it suffered from "inflation" following the 1979 Iranian Revolution when it came to be used for "any established mujtahid". By 2015 it was further expanded to include any student who had passed their Mujtahid final exam, leading to "thousands" of Ayatollahs.