swallow up vs waterlog

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. 

waterlog

verb
  • To saturate with water. 

  • To make (a boat) heavy and in danger of sinking by flooding it with water. 

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