sward vs transvestite

sward

noun
  • A homosexual man. 

  • The rind of bacon or pork; also, the outer covering or skin of something. 

  • Earth which grass has grown into the upper layer of; greensward, sod, turf; (countable) a portion of such earth. 

  • An expanse of land covered in grass; a lawn or meadow. 

verb
  • Of ground, etc.: to be covered with sward; to develop a covering of sward. 

  • To cover (ground, etc.) with sward. 

transvestite

noun
  • 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. 

  • 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. 

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