Erastianism
Concise Oxford English Dictionary © 2008 Oxford University Press:
Erastianism /ɪˈrastɪəˌnɪz(ə)m/
▶noun the doctrine that the state should have supremacy over the Church in ecclesiastical matters (wrongly attributed to the 16th-century Swiss theologian Thomas Lieber Erastus).
– derivatives
Erastian noun & adjective.
Erastian noun & adjective.
'Erastianism' also found in these Oxford entries:

