acquiesce vs sue

acquiesce

verb
  • To concur upon conviction; to assent to; usually, to concur, not heartily but so far as to forbear opposition. 

  • To rest satisfied, or apparently satisfied, or to rest without opposition and discontent (usually implying previous opposition or discontent); to accept or consent by silence or by omitting to object. 

sue

verb
  • To seek by request; to make application; to petition; to entreat; to plead. 

  • To file a legal action against someone, generally a non-criminal action. 

  • To clean (the beak, etc.). 

  • To leave high and dry on shore. 

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