enhanced vs extended

enhanced

adj
  • Raised up, amplified. 

  • Having suffered the use of anabolic steroids or other performance-enhancing drugs. 

  • In a version or form that has been improved or made better than some other standard form. 

extended

adj
  • Stretched out or pulled out; expanded. 

  • Wider than usual. 

  • Lasting longer; protracted. 

  • Longer in length or extension; elongated. 

  • Having a large scope or range; extensive. 

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