kindling vs tinder

kindling

noun
  • Small pieces of wood and twigs used to start a fire. 

  • The act by which something is kindled. 

adj
  • Illuminated, lit. 

tinder

noun
  • Small dry sticks and finely-divided fibrous matter etc., used to help light a fire. 

verb
  • To set fire to; torch. 

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