shemale vs transvestite

shemale

noun
  • A male-to-female transsexual or transgender person; a trans woman. 

  • A male animal which displays female traits or behaviors; for example, a male reptile which gives off female pheromones. 

transvestite

noun
  • A person who sometimes wears clothes traditionally worn by and associated with the opposite sex; typically a male who cross-dresses occasionally by habit or personal choice. 

  • A person, typically a heterosexual male, who compulsively seeks and derives paraphilic sexual arousal from cross-dressing, especially if the urges and behavior cause the patient distress or social impairment. 

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