afterbirth vs wife

afterbirth

noun
  • The placenta and other material expelled via the birth canal following childbirth or parturition in mammals. 

wife

noun
  • The female of a pair of mated animals. 

  • A married woman, especially in relation to her spouse. 

  • Synonym of woman. 

verb
  • to marry (a woman) 

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