charge up vs diminish

charge up

verb
  • To recharge, to give electrical power to something. 

  • To deliberately infect an individual with HIV as part of bug-chasing. 

  • To motivate, to instill someone with determination. 

diminish

verb
  • To taper. 

  • To disappear gradually. 

  • To take away; to subtract. 

  • To make smaller. 

  • 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 charge up and diminish occurred in a corpus of books? (source: Google Ngram Viewer )