source vs swerve

source

noun
  • A reporter's informant. 

  • Source code. 

  • The name of one terminal of a field effect transistor (FET). 

  • Spring; fountainhead; wellhead; any collection of water on or under the surface of the ground in which a stream originates. 

  • The person, place, or thing from which something (information, goods, etc.) comes or is acquired. 

verb
  • To obtain or procure: used especially of a business resource. 

  • To find information about (a quotation)'s source (from which it comes): to find a citation for. 

swerve

verb
  • To bend; to incline; to give way. 

  • To go out of a straight line; to deflect. 

  • To wander from any line prescribed, or from a rule or duty; to depart from what is established by law, duty, custom, or the like; to deviate. 

  • Of a projectile, to travel in a curved line 

  • To climb or move upward by winding or turning. 

  • To go out of one's way to avoid; to snub. 

  • To turn aside or deviate to avoid impact. 

  • To drive in the trajectory of another vehicle to stop it, to cut off. 

noun
  • A sudden movement out of a straight line, for example to avoid a collision. 

  • A deviation from duty or custom. 

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