eternize vs string out

eternize

verb
  • To prolong indefinitely. 

  • To make or render eternal. 

  • To immortalize; to make eternally famous. 

string out

verb
  • To prolong or extend in an unnecessary, contrived or time-filling manner. 

  • To extend on or as if by strings, wires etc. 

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