deluge vs swamping

deluge

noun
  • A great flood or rain. 

  • An overwhelming amount of something; anything that overwhelms or causes great destruction. 

  • A system for flooding or drenching a space, container, or area with water in an emergency to prevent or extinguish a fire. 

verb
  • To flood with water. 

  • To overwhelm. 

swamping

noun
  • An act of swamping (drenching or filling with water). 

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