increase vs protraction

increase

noun
  • For a quantity, the act or process of becoming larger 

  • The creation of one or more new stitches; see Increase (knitting). 

  • Offspring, progeny 

  • An amount by which a quantity is increased. 

verb
  • To multiply by the production of young; to be fertile, fruitful, or prolific. 

  • To become more nearly full; to show more of the surface; to wax. 

  • To make (a quantity, etc.) larger. 

  • (of a quantity, etc.) To become larger or greater. 

protraction

noun
  • The act of protracting 

  • The condition of being protracted 

  • The act of making a plot on paper. 

  • The lengthening of a short syllable 

  • An anterior movement on the horizontal plane; The forward movement of the tongue or of a limb 

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