accrue vs hoard

accrue

verb
  • To become an enforceable and permanent right. 

  • To increase, to rise 

  • To accumulate. 

  • To reach or come to by way of increase; to arise or spring up because of growth or result, especially as the produce of money lent. 

  • To be incurred as a result of the passage of time. 

hoard

noun
  • A cache of valuable objects or artefacts; a trove. 

  • A hoarding (temporary structure used during construction). 

  • A hidden supply or fund. 

  • A hoarding (billboard). 

  • A projecting structure (especially of wood) in a fortification, somewhat similar to and later superseded by the brattice. 

verb
  • To amass, usually for one's own private collection. 

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