inflood vs infusion

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. 

infusion

noun
  • The act of steeping or soaking a substance in liquid so as to extract medicinal or herbal qualities. 

  • The administration of liquid substances directly into a vein for medical purposes; perfusion. 

  • A product consisting of a liquid which has had other ingredients steeped in it to extract useful qualities. 

  • The act of installing a quality into a person. 

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