inundation vs outgushing

inundation

noun
  • An overflowing or superfluous abundance; a flood; a great influx 

  • The act of inundating; an overflow; a flood; a rising and spreading of water over grounds. 

  • The state of being inundated; flooding 

outgushing

noun
  • That which gushes outward. 

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