bestow vs heap on

bestow

verb
  • To impart (something) gratuitously; to present (something) to someone or something, especially as a gift or an honour; to confer, to give. 

  • To apply or make use of (someone or something); to employ, to use. 

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 bestow and heap on occurred in a corpus of books? (source: Google Ngram Viewer )