affect vs fail

affect

verb
  • To make a show of; to put on a pretense of; to feign; to assume. To make a false display of. 

  • To feel affection for (someone); to like, be fond of. 

  • To burden (property) with a fixed charge or payment, or other condition or restriction. 

  • To influence or alter. 

  • To move to emotion. 

  • Of an illness or condition, to infect or harm (a part of the body). 

noun
  • A subjective feeling experienced in response to a thought or other stimulus; mood, emotion, especially as demonstrated in external physical signs. 

fail

verb
  • To be wanting to, to be insufficient for, to disappoint, to desert; to disappoint one's expectations. 

  • Not to achieve a particular stated goal. (Usage note: The direct object of this word is usually an infinitive.) 

  • To become unable to meet one's engagements; especially, to be unable to pay one's debts or discharge one's business obligation; to become bankrupt or insolvent. 

  • To receive one or more non-passing grades in academic pursuits. 

  • To give a student a non-passing grade in an academic endeavour. 

  • To be wanting; to fall short; to be or become deficient in any measure or degree up to total absence. 

  • To neglect. 

  • To be unsuccessful. 

  • Of a machine, etc.: to cease to operate correctly. 

noun
  • A failure, especially of a financial transaction (a termination of an action). 

  • A failure (condition of being unsuccessful). 

  • A failing grade in an academic examination. 

  • Poor quality; substandard workmanship. 

  • A failure (something incapable of success). 

  • A piece of turf cut from grassland. 

adj
  • Unsuccessful; inadequate; unacceptable in some way. 

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