disinterest vs laugh away

disinterest

verb
  • To render disinterested. 

noun
  • The absence of interest (bias or stake). 

  • An absence of interest (attention or curiosity). 

laugh away

verb
  • To dismiss something as unimportant. 

  • To pass the time with frivolous and amusing conversation. 

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