fanny vs fundament

fanny

noun
  • The buttocks; arguably the most nearly polite of several euphemisms. 

  • The female genitalia. 

  • Women viewed as sexual objects. 

  • Mess kettle or cooking pot. 

  • Sexual intercourse with a woman. 

fundament

noun
  • The bottom; the buttocks or anus. 

  • Foundation. 

  • The underlying basis or principle for a theoretical or mathematical system. 

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