doyenne vs grandfather

doyenne

noun
  • A female doyen. 

  • A woman who is highly experienced and knowledgeable in a particular field, subject, or line of work; expert 

  • The senior or eldest female member of a group, especially one who is most or highly respected. 

grandfather

verb
  • To retain discontinued laws or rules for (a thing, person or organization previously affected by them). 

  • To be, or act as, a grandfather to. 

noun
  • A father of someone's parent. 

  • A male forefather. 

  • The archived older version of a file that immediately preceded the father file. 

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