chambermaid vs drudge

chambermaid

noun
  • A maid who handles the chores in a bedroom. 

drudge

noun
  • A person who works in a low servile job. 

  • Someone who works for (and may be taken advantage of by) someone else. 

verb
  • To labour in (or as in) a low servile job. 

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