belief vs qualm

belief

noun
  • One's religious or moral convictions. 

  • Mental acceptance of a claim as true. 

  • Religious faith. 

  • The quality or state of believing. 

  • Faith or trust in the reality of something; often based upon one's own reasoning, trust in a claim, desire of actuality, and/or evidence considered. 

  • Something believed. 

qualm

noun
  • A prick of the conscience; a moral scruple, a pang of guilt. 

  • A feeling of apprehension, doubt, fear etc. 

  • A sudden sickly feeling; queasiness. 

verb
  • To have a sickly feeling. 

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