extinct vs in use

extinct

verb

  • To make extinct; to extinguish or annihilate. 

adj

  • No longer active. 

  • No longer in existence; having died out. 

  • No longer used; obsolete, discontinued. 

in use

prep

  • Currently being used. 

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