delay vs preference

delay

verb
  • To retard; to stop, detain, or hinder, for a time. 

  • To put off until a later time; to defer. 

noun
  • A period of time before an event occurs; the act of delaying; procrastination; lingering inactivity. 

  • An audio effects unit that introduces a controlled delay. 

  • Synonym of promise (“object representing delayed result”) 

  • An amount of time provided on each move before one's clock starts to tick; a less common time control than increment. 

preference

verb
  • To give preferential treatment to; to give a preference to. 

noun
  • The option to so select, and the one selected. 

  • The selection of one thing or person over others (with the main adposition being "for" in relation to the thing or person, but possibly also "of") 

  • The state of being preferred over others. 

  • Preferans, a card game, principally played in Eastern Europe. 

  • A strong liking or personal valuation. 

  • A preferential bias; partiality; discrimination. 

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