hindrance vs synergy

hindrance

noun
  • Something which hinders: something that holds back or causes problems with something else. 

  • The state or act of hindering something 

synergy

noun
  • Benefits resulting from combining different groups, people, objects or processes. 

  • The cooperation of two or more nerves, muscles, organs, etc. 

  • A synonym of binding energy. 

  • The combined action of two or more drugs where the effects are stronger than their mere sum. 

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