back out vs recall

back out

verb
  • To undo (a change). 

  • To withdraw from something one has agreed to do. 

  • To exit a mode or function. 

  • To draw from behind the back [+accusative = a knife etc.] (as also bare back). 

  • Coordinate terms: cancel, call off, get cold feet 

  • To reverse (a vehicle) from a confined space. 

  • See also: sell short 

  • To dare (someone) to not withdraw from a challenge. 

  • To bet on someone losing. 

  • Coordinate term: scare off 

recall

verb
  • To withdraw, retract (one's words etc.); to revoke (an order). 

  • To bring back (someone) to or from a particular mental or physical state, activity etc. 

  • To remove an elected official through a petition and direct vote. 

  • To call back, bring back or summon (someone) to a specific place, station etc. 

  • To call back (a situation, event etc.) to one's mind; to remember, recollect. 

  • To call again, to call another time. 

  • To request or order the return of (a faulty product). 

noun
  • Memory; the ability to remember. 

  • The fraction of (all) relevant material that is returned by a search. 

  • The right or procedure by which the decision of a court may be directly reversed or annulled by popular vote, as was advocated, in 1912, in the platform of the Progressive Party for certain cases involving the police power of the state. 

  • Request of the return of a faulty product. 

  • The right or procedure by which a public official may be removed from office before the end of their term of office, by a vote of the people to be taken on the filing of a petition signed by a required number or percentage of qualified voters. 

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