height vs waning

height

noun
  • The vertical distance from the ground to the highest part of a standing person or animal (withers in the case of a horse). 

  • The highest point or maximum degree. 

  • The distance of something above the ground or some other chosen level. 

  • A quality of vowels, indicating the vertical position of the tongue relative to the roof of the mouth; in practice, the first formant, associated with the height of the tongue. 

  • A mountain, especially a very high one. 

  • The amplitude of a sine function 

  • The distance from the base of something to the top. 

  • A high point. 

  • An area of land at the top of a cliff. 

waning

adj
  • Becoming weaker or smaller. 

  • Of the lunar phase: as it shrinks when viewed from the Earth. 

noun
  • The fact or act of becoming smaller. 

  • The fact or act of becoming less or less intense or present; fading. 

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