Definition of Nicolaitanism in English:

Nicolaitanism

noun

historical
  • The beliefs and practices of the Nicolaitan sect; libertinism; an instance of this. Later: specifically the practice of clerical marriage.

Origin

Mid 17th century; earliest use found in John Wilson. From Nicolaitan + -ism.

Pronunciation

Nicolaitanism

/nɪkəˈleɪɪtənɪz(ə)m/