heighten vs inflate

heighten

verb
  • To advance, increase, augment, make larger, more intense, stronger etc. 

  • To make high; to raise higher; to elevate. 

inflate

verb
  • To enlarge an object by pushing air (or a gas) into it; to raise or expand abnormally 

  • To decompress (data) that was previously deflated. 

  • To swell; to puff up. 

  • To enlarge by filling with air (or a gas). 

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