declination vs increase

declination

noun
  • At a given point, the angle between magnetic north and true north. 

  • A refusal. 

  • At a given point, the angle between the line connecting this point with the geographical center of the earth and the equatorial plane. 

increase

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

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

  • 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. 

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