flunkey vs myrmidon

flunkey

noun
  • An underling; a liveried servant or a footman; servant, retainer – a person working in the service of another (especially in the household). 

  • One easily deceived in buying stocks; an inexperienced and unwary jobber. 

  • One who is obsequious or cringing; a snob. 

myrmidon

noun
  • A soldier or a subordinate civil officer who executes orders of a superior without protest or pity (sometimes applied to bailiffs, constables, etc). 

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