Redemptorist
noun
Re·demp·tor·ist ri-ˈdem(p)-t(ə-)rist 
: a member of the Congregation of the Most Holy Redeemer founded by St. Alphonsus Liguori in Scala, Italy, in 1732 and devoted to preaching
Word History
Etymology
French rédemptoriste, from Late Latin redemptor redeemer, from Latin, contractor, from redimere
First Known Use
1835, in the meaning defined above