abend vs backwash

abend

noun
  • Termination of a process prior to completion. 

  • The abnormal termination of a program. 

verb
  • To terminate abnormally. 

backwash

noun
  • The result or consequence of an event; an aftermath. 

  • The saliva, spit or food particles that have flowed back into a drink after someone has drunk from it. 

  • The backward flow of water from oars or propeller or breaking waves. 

  • The situation where economic growth in one area harms other areas by attracting people and business away from those areas. 

  • The similar flow of air from an aircraft engine. 

verb
  • To affect with backwash. 

  • To clean the oil from wool after combing. 

  • To operate a water filter in the reverse direction in order to clean it. 

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