gumshoe vs quizzer

gumshoe

noun

  • A detective. 

  • A sneaker or rubber overshoe. 

verb

  • To act as a detective. 

quizzer

noun

  • A person who quizzes or asks questions. 

  • A person who takes part in a quiz. 

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