maximize vs overwork

maximize

verb
  • to make as large as possible 

  • to expand (a window) to fill the main display area 

overwork

verb
  • To decorate all over. 

  • To make (someone or something) work too hard. 

  • To fill too full of work; to crowd with labour. 

  • To work too hard. 

noun
  • excessive work 

  • a superstructure 

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