ascent vs diminution

ascent

noun
  • The act of ascending; a motion upwards. 

  • An increase, for example in popularity or hierarchy 

  • The ascender height in a typeface. 

  • The degree of elevation of an object, or the angle it makes with a horizontal line; inclination; gradient; steepness 

  • The way or means by which one ascends. 

  • An eminence, hill, or high place. 

diminution

noun
  • The act or process of making diminutive. 

  • A lessening, decrease or reduction. 

  • a compositional technique where the composer shortens the melody by shortening its note values. 

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