blockage vs celerity

blockage

noun
  • Synonym of constipation (“impairment of feces passage”). 

  • The thing that is the cause of such a state, blocking a passage. 

  • The state or condition of being blocked. 

  • Synonym of thrombosis, synonym of thromboembolism, or synonym of embolism. 

celerity

noun
  • Speed, swiftness. 

  • The speed with which a perturbation to the flow propagates through the flow domain. 

  • The speed of individual waves (as opposed to the speed of groups of waves). 

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