maidenhair vs mons pubis

maidenhair

noun
  • A woman's pubic hair. 

  • Either of two ericaceous plants, the creeping snowberry or the checkerberry. 

  • Either of two species of genus Adiantum of fern with delicate, hair-like stalks, especially Adiantum capillus-veneris. 

  • Designating various types of moss or flowering plants. 

mons pubis

noun
  • A fleshy protuberance over the pubic bones that becomes covered with hair during puberty. 

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