irrigate vs rasher

irrigate

verb
  • To clean (a wound) with a fluid. 

  • To supply (farmland) with water, by building ditches, pipes, etc. 

rasher

verb
  • To cut into rashers. 

noun
  • A strip, a piece (of something, such as ham, bacon, etc). 

  • A strip of bacon; a piece of bacon. 

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