'bacco vs tobacco

'bacco

noun
  • tobacco 

tobacco

noun
  • A variety of tobacco. 

  • Any plant of the genus Nicotiana. 

  • Leaves of Nicotiana tabacum and some other species cultivated and harvested to make cigarettes, cigars, snuff, for smoking in pipes or for chewing. 

verb
  • To indulge in tobacco; to smoke. 

  • To treat with tobacco. 

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