dilate vs diminish

dilate

verb
  • To enlarge; to make bigger. 

  • To speak largely and copiously; to dwell in narration; to enlarge; with "on" or "upon". 

  • To use a dilator to widen (something, such as a vagina). 

  • To become wider or larger; to expand. 

diminish

verb
  • To make smaller. 

  • To taper. 

  • To disappear gradually. 

  • To take away; to subtract. 

  • To lessen the authority or dignity of; to put down; to degrade; to abase; to weaken; to nerf (in gaming). 

  • To become less or smaller. 

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