kathoey vs tranny

kathoey

noun
  • A transgender person or person of a third gender assigned male at birth. 

  • A feminine gay man. 

tranny

noun
  • A transsexual, transgender, or transvestite person, usually a trans woman. 

  • A mechanical transmission, a gearbox. 

  • A transistor radio. 

  • A transformer. 

  • A transition between moves. 

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