battle-scarred vs knowledgeable

battle-scarred

adj
  • Having scars or other damage received in battle 

knowledgeable

adj
  • Educated and well informed. 

  • Having knowledge, especially of a particular subject. 

noun
  • A person who has knowledge; an informed party. 

How often have the words battle-scarred and knowledgeable occurred in a corpus of books? (source: Google Ngram Viewer )