minion vs scullery maid

minion

noun
  • A loyal servant of another, usually a more powerful being. 

  • A sycophantic follower. 

  • The size of type between nonpareil and brevier, standardized as 7-point. 

scullery maid

noun
  • A domestic servant, of lowest status, whose job is to wash dishes and do other menial chores. 

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