damson vs windfall

damson

noun
  • The edible fruit of this tree. 

  • A subspecies of plum tree, Prunus domestica subsp. insititia, native to Eurasia. 

adj
  • The color of the fruit of this tree, a very deep purple. 

windfall

noun
  • A fruit that has fallen from a tree naturally, as from wind. 

  • Something that has been blown down by the wind. 

  • A sudden large benefit; especially, a sudden or unexpected large amount of money, as from lottery or sweepstakes winnings or an unexpected inheritance or gift. 

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