likewise vs though

likewise

adv
  • also; moreover; too. 

  • The same to you; used as a response. 

  • In a similar manner. 

though

adv
  • Despite that; however. 

  • Used to intensify statements or questions; indeed. 

conj
  • Despite the fact that; although. 

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