burble vs spurge

burble

verb
  • To bubble; to gurgle. 

  • To babble; to speak in an excited rush. 

  • To trouble or confuse. 

noun
  • The turbulent boundary layer about a moving streamlined body. 

  • A bubbling, gurgling sound, as of a creek. 

  • Trouble; disorder. 

  • A gush of rapid speech. 

spurge

verb
  • To emit foam; to froth; said of the emission of yeast from beer during fermentation. 

noun
  • Any plant of the genus Euphorbia, a diverse genus of over 2,000 species. 

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