eonian vs extended

eonian

adj
  • everlasting 

  • Of or pertaining to an eon 

extended

adj
  • Lasting longer; protracted. 

  • Wider than usual. 

  • Longer in length or extension; elongated. 

  • Having a large scope or range; extensive. 

  • Stretched out or pulled out; expanded. 

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