loricarian
/ˌlɒrɪˈkærɪərɪən/Definitions
1. noun
A Christian who lives under a rule of life, especially a member of a loricarian order in the 17th or 18th century
“Some historians believe that the loricarian movement influenced the development of monasticism in Europe.”
2. noun
A person who wears a lorica, especially a Christian who wears a hair shirt or other forms of corporal mortification
“During his period of spiritual purification, the loricarian wore a hair shirt and practiced intense self-discipline.”