Passionist
/ˈpaʃ(ə)nɪst/ /ˈpaʃənɪst/noun
Roman Catholic Church. A member of the Congregation of the Passion, a religious order devoted to keeping alive the memory of Christ's Passion, founded by Paolo Francesco Danei (St Paul of the Cross) in Italy in 1720.
adjective
Of or relating to a Passionist or Passionists.
Origin
Early 19th century; earliest use found in John Milner (1752–1826), vicar apostolic of the midland district and religious controversialist. From passion + -ist, probably after Italian passionista.