accrual vs enlargement

accrual

noun
  • An increase; something that accumulates, especially an amount of money that periodically accumulates for a specific purpose 

  • from the creditor's viewpoint, a charge incurred in one accounting period that has not been, but is to be, paid by the end of it. 

enlargement

noun
  • An act or instance of making something larger. 

  • Diffuseness of speech or writing; a speaking at length. 

  • A making more obvious or serious; exacerbation. 

  • An image, particularly a photograph, that has been enlarged. 

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