gumshoe vs slink

gumshoe

noun
  • A sneaker or rubber overshoe. 

  • A detective. 

verb
  • To act as a detective. 

slink

noun
  • A thievish fellow; a sneak. 

  • The meat of such a prematurely born animal. 

  • A furtive sneaking motion. 

  • The young of an animal when born prematurely, especially a calf. 

adj
  • Thin; lean 

verb
  • To sneak about furtively. 

  • To give birth to an animal prematurely. 

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