overswell vs pump up

overswell

verb
  • To swell or rise above (something, especially the rim of a container, the sides of something hollow, etc.). 

  • To cause (something) to be too swollen or large; to become too swollen or large. 

noun
  • An excessive or sudden increase or flood (of something). 

pump up

verb
  • To inflate with a pumping action. 

  • To inflate by means of a pump. 

  • To cause one's muscles to swell by means of focussed weightlifting. 

  • To excite a person or group to a frenzy. 

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