alternately vs though

alternately

adv
  • Alternatively. 

  • In reciprocal succession; succeeding by turns; in alternate order. 

  • By alternation; when, in a proportion, the antecedent term is compared with antecedent, and consequent. 

though

adv
  • Despite that; however. 

  • Used to intensify statements or questions; indeed. 

conj
  • Despite the fact that; although. 

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