deign vs heap on

deign

verb
  • To condescend to give; to do something. 

  • To condescend; to do despite a perceived affront to one's dignity. 

heap on

verb
  • To give someone a lot of something (advice, praise, insults, etc.), especially more so than they can handle or is appropriate 

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