lavage vs wet through

lavage

verb

  • To wash a hollow organ 

noun

  • A washing. 

  • A washing of a hollow organ. 

wet through

verb

  • To soak or drench thoroughly 

adj

  • soaked, very wet (such that water gets through the clothes to reach the skin) 

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