backwash vs wake

backwash

noun
  • The similar flow of air from an aircraft engine. 

  • 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 result or consequence of an event; an aftermath. 

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. 

wake

noun
  • The turbulent air left behind a flying aircraft. 

  • A period after a person's death before or after the body is buried, cremated, etc.; in some cultures accompanied by a party and/or collectively sorting through the deceased's personal effects. 

  • The path left behind a ship on the surface of the water. 

  • A number of vultures assembled together. 

  • A yearly parish festival formerly held in commemoration of the dedication of a church. Originally, prayers were said on the evening preceding, and hymns were sung during the night, in the church; subsequently, these vigils were discontinued, and the day itself, often with succeeding days, was occupied in rural pastimes and exercises, attended by eating and drinking. 

  • The area behind something, typically a rapidly-moving object. 

  • The state of forbearing sleep, especially for solemn or festive purposes; a vigil. 

  • The movement of water created when an animal or a person moves through water. 

verb
  • (often followed by up) To make somebody stop sleeping; to rouse from sleep. 

  • (often followed by up) To stop sleeping. 

  • To watch, or sit up with, at night, as a dead body. 

  • To be or remain awake; not to sleep. 

  • To put in motion or action; to arouse; to excite. 

  • To be excited or roused up; to be stirred up from a dormant, torpid, or inactive state; to be active. 

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