inflood vs seepage

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. 

seepage

noun
  • The process by which something, especially a liquid, leaks through a porous substance; the process of seeping. (Also used figuratively: the process of diffusing.) 

  • Water that has seeped or oozed through a porous soil. 

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