vaunt vs yammer

vaunt

verb
  • To speak boastfully about. 

  • To boast of; to make a vain display of; to display with ostentation. 

  • To speak boastfully. 

noun
  • A boast; an instance of vaunting. 

yammer

verb
  • To make an outcry; to clamor. 

  • To complain peevishly. 

  • To repeat on and on, usually loudly or in complaint. 

  • To talk loudly and persistently. 

noun
  • A loud noise. 

  • One who yammers. 

  • The act or noise of yammering. 

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