creepage vs slink

creepage

noun
  • A gradual, creeping movement. 

  • The leakage of an electrical current across the surface of an insulator (dielectric) 

slink

noun
  • A furtive sneaking motion. 

  • The meat of such a prematurely born animal. 

  • A thievish fellow; a sneak. 

  • 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 creepage and slink occurred in a corpus of books? (source: Google Ngram Viewer )