Tom vs menstruation

Tom

noun
  • Synonym of menstruation. 

name
  • A nickname for a common man. 

  • A diminutive of the male given name Thomas, also used as a formal male given name. 

  • A large, deep-toned bell, or a particularly notable example of one. 

menstruation

noun
  • An instance of menstruation, the part of each month during which a fertile woman menstruates. 

  • The periodic discharging of the menses, the flow of blood and cells from the lining of the uterus in unfertilized females of humans and other primates. 

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