gelatinize vs vaseline

gelatinize

verb
  • To coat or treat with gelatin. 

  • To become gelatinous. 

  • To cause to become gelatinous. 

vaseline

verb
  • To lubricate with vaseline. 

noun
  • Any particular kind of petroleum jelly or of any similar lubricant. 

  • Petroleum jelly. 

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