verbalism vs watchword

verbalism

noun
  • The expression of a concept in words; the wording used in such an expression 

  • The excessive use of words, often with little meaning 

watchword

noun
  • A word used as a motto, as expressive of a principle, belief, or rule of action; a rallying cry. 

  • A prearranged reply to the challenge of a sentry or a guard; a password or signal by which friends can be known from enemies. 

How often have the words verbalism and watchword occurred in a corpus of books? (source: Google Ngram Viewer )