dishwasher vs maid

dishwasher

noun
  • Someone who washes dishes, especially one hired to wash dishes in a restaurant. 

  • A European bird, the wagtail. 

  • A machine for washing dishes. 

  • A bird, the restless flycatcher (Myiagra inquieta). 

maid

noun
  • A female servant or cleaner (short for maidservant). 

  • A girl or an unmarried young woman; maiden. 

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