inflood vs intromission

inflood

noun
  • The act or process of flooding or flowing in; an inflow or influx. 

verb
  • Of a river, water, etc.: to flood or flow into (a place). 

  • To flood or flow in; to inflow. 

intromission

noun
  • the act of allowing to enter; admission 

  • copulation: normally refers to the first moment of initial entry of a penis into a vagina, mouth or anus. 

  • An intermeddling with the affairs of another, either on legal grounds or without authority. 

  • the state of being allowed to enter; admittance 

  • putting one thing into another; insertion 

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