What is nicolaism?

Answer 1

Nicolaism (after Rev.2.6,14- 15). Clerical marriage, especially in rural areas of England, a matter of general acceptance by the C11th.

Answer 2

Nicolaitanism is a term used in The Bible to refer to a group or practice that holds to compromising or sinful behaviors, particularly related to immorality or idolatry. It is mentioned in the book of Revelation as a doctrine that is to be rejected.