towing vs traction

towing

noun
  • The act by which something is towed. 

traction

noun
  • The act of pulling something along a surface using motive power. 

  • The condition of being so pulled. 

  • The extent of adoption of a new product or service, typically measured in number of customers or level of revenue achieved. 

  • Popular support. 

  • A mechanically applied sustained pull, especially to a limb. 

  • Collectively, the locomotives of a railroad, especially electric locomotives. 

  • The pulling power of an engine or animal. 

  • Grip. 

  • Scholarly interest and research. 

  • The adhesive friction of a wheel etc on a surface. 

verb
  • To apply a sustained pull to (a limb, etc.). 

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