blockage vs byway

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. 

byway

noun
  • a little-known or arcane field of study or detail. 

  • a road that is not frequently travelled. 

  • a road or track not following a main route; a minor road or path. 

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