overwhelm vs thrash

overwhelm

verb
  • To engulf, surge over and submerge. 

  • To overpower emotionally. 

  • To cause to surround, to cover. 

  • To overpower, crush. 

noun
  • The state or condition of being overwhelmed. 

thrash

verb
  • To move about wildly or violently; to flail; to labour. 

  • To defeat utterly. 

  • To extensively test a software system, giving a program various inputs and observing the behavior and outputs that result. 

  • In computer architecture, to cause or undergo poor performance of a virtual memory (or paging) system. 

  • To beat mercilessly. 

  • To thresh. 

noun
  • A beat or blow; the sound of beating. 

  • thrash metal 

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