aged vs youthless

aged

adj
  • Having the age of. 

  • Old. 

  • Having undergone the improving effects of time; matured. 

noun
  • Old people, collectively. 

youthless

adj
  • Devoid of youth; old, aged. 

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