stagnate vs transubstantiate

stagnate

verb
  • To cease to develop, advance, or change; to become idle. 

  • To cease to flow or run. 

  • To be or become foul from standing. 

transubstantiate

verb
  • To change one substance into another; to transmute. 

  • To change the bread and wine of the Eucharist into the body and blood of Jesus. 

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