lavage vs lave

lavage

verb
  • To wash a hollow organ 

noun
  • A washing. 

  • A washing of a hollow organ. 

lave

verb
  • To wash. 

  • To draw, as water; drink in. 

  • To lick. 

  • To run down or gutter, as a candle. 

  • To give bountifully; lavish. 

  • To hang or flap down. 

noun
  • A crowd 

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