belabour vs vaunt

belabour

verb
  • To discuss something unduly or repeatedly; to harp on. 

  • To labour about; labour over; work hard upon; ply diligently. 

  • To beat soundly; thump; beat someone. 

  • To attack someone verbally. 

  • To explain or elaborate at length or in excessive detail; overelaborate. 

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. 

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