butler vs liveried servant

butler

noun
  • A valet, a male personal attendant. 

  • The chief male servant of a household who has charge of other employees, receives guests, directs the serving of meals, and performs various personal services. 

  • A manservant having charge of wines and liquors. 

verb
  • To buttle, to dispense wines or liquors; to take the place of a butler. 

liveried servant

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