editorialize vs speak up

editorialize

verb
  • To express one's opinion as if in an editorial, or as if it were an objective statement. 

speak up

verb
  • To make oneself or one's opinions known; to advocate or assert oneself. 

  • To talk more loudly or plainly. 

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