caponize vs emasculate

caponize

verb
  • To castrate (a cockerel) in order to fatten it for table use. 

emasculate

verb
  • To deprive of virile or procreative power; to castrate, to geld. 

  • Of a flower: to deprive of the anthers. 

  • To remove the entire male genitalia (the testicles, scrotum, and penis) of (a person or animal). 

  • To deprive of masculine vigor or spirit; to weaken; to render effeminate; to vitiate by unmanly softness. 

adj
  • Deprived of virility or vigor; unmanned, weak. 

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