lavage vs suffuse

lavage

verb
  • To wash a hollow organ 

noun
  • A washing. 

  • A washing of a hollow organ. 

suffuse

verb
  • To spread through or over something, especially as a liquid, colour or light; to bathe. 

  • To spread through or over in the manner of a liquid. 

  • To pour underneath. 

adj
  • Suffused; diffuse. 

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