stripped down vs underlying

stripped down

adj

  • Reduced to essentials; without enhancements. 

underlying

adj

  • basic or fundamental 

  • implicit 

  • lying underneath 

  • We dug down to the underlying rock. 

noun

  • The entity from whose performance a derivative derives its value. 

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