consume vs live off

consume

verb
  • To trade money for good or services as an individual. 

  • To use up. 

  • To completely occupy the thoughts or attention of. 

  • To eat. 

  • To destroy completely. 

  • To absorb information, especially through the mass media. 

live off

verb
  • To depend on financially. 

  • To survive by consuming only a certain thing or things. 

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