Nicodemite
noun
Nic·o·de·mite
ˌnikəˈdēˌmīt
plural -s
: a secret follower or adherent
specifically : a 16th century Protestant Christian who lived in a Roman Catholic country and escaped persecution by concealing his or her Protestantism
Word History
Etymology
Nicodemus, the Jewish ruler who came to Jesus by night (from Latin, from Greek Nikodēmos) (John 3:1–21) + English -ite