coax vs persuade

coax

verb
  • To wheedle or persuade (a person, organisation, animal etc.) gradually or by use of flattery to do something. 

  • To carefully manipulate (someone or something) into a particular desired state, situation or position. 

persuade

verb
  • To successfully convince (someone) to agree to, accept, or do something, usually through reasoning and verbal influence. 

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