cervix vs weasand

cervix

noun
  • The neck 

  • The lower, narrow portion of the uterus where it joins with the top end of the vagina. 

  • The necklike portion of any part, as of the womb. 

weasand

noun
  • The throat or windpipe. 

  • The oesophagus; the gullet. 

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