noun (n)

• indulgence in moral pronouncements; the exposition (often superficially) of a particular moral code(noun.communication)

  Synonym:
  moralisation, moralizing
  

  source: wordnet30
• the act of making moral (or more moral)(noun.act)

  Example:
  For years she worked toward the moralization of English literature.
  

  Synonym:
  moralisation
  

  source: wordnet30
• The act of moralizing; moral reflections or discourse.(noun)

  source: webster1913