Yahoo vs drudge

Yahoo

noun
  • One of a race of brutes, who look and act similar to men, inhabiting the same land as the civilized Houyhnhnms. 

  • An employee of the Internet company Yahoo!. 

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 Yahoo and drudge occurred in a corpus of books? (source: Google Ngram Viewer )