cajoler vs kiss-up

cajoler

noun
  • A person who cajoles; a flatterer. 

  • A speech act intended to persuade or convince, such as the utterance "you know". 

kiss-up

noun
  • One who flatters a supervisor, or superior, in order to get special attention 

How often have the words cajoler and kiss-up occurred in a corpus of books? (source: Google Ngram Viewer )