elute vs waterlog

elute

verb
  • To separate one substance from another by means of a solvent; to wash; to cleanse. 

waterlog

verb
  • To saturate with water. 

  • To make (a boat) heavy and in danger of sinking by flooding it with water. 

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