struggle vs wrest

struggle

verb
  • To strive, or to make efforts, with a twisting, or with contortions of the body. 

  • To strive, to labour in difficulty, to fight (for or against), to contend. 

noun
  • A contortion of the body in an attempt to escape or to perform a difficult task. 

  • Strife, contention, great effort. 

wrest

verb
  • To obtain by pulling or violent force. 

  • To tune with a wrest, or key. 

  • To seize. 

  • To distort, to pervert, to twist. 

  • To pull or twist violently. 

noun
  • A key to tune a stringed instrument. 

  • A partition in a water wheel by which the form of the buckets is determined. 

  • The act of wresting; a wrench or twist; distortion. 

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