demoiselle vs womanservant

demoiselle

noun
  • A young lady; a damsel; a lady's maid. 

  • A damselfly of the family Calopterygidae. 

  • The Numidian crane (Grus virgo). 

womanservant

noun
  • A woman who is a servant; the female counterpart to a manservant. 

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