examine vs weigh up

examine

verb
  • to check the health or condition of something or someone 

  • to interrogate 

  • to determine the aptitude, skills or qualifications of someone by subjecting them to an examination 

  • to observe or inspect carefully or critically 

weigh up

verb
  • To assess a person or situation 

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