deluge vs swallow up

deluge

verb
  • To overwhelm. 

  • To flood with water. 

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. 

swallow up

verb
  • To voraciously consume resources, such as money; to devour. 

  • To completely enclose or envelop. 

  • To take over or absorb something (especially an organisation) so it no longer has a separate identity; to assimilate. 

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