as in vs relatedly

as in

adv
  • In the sense of. 

  • Used other than figuratively or idiomatically: see as, in. 

relatedly

adv
  • In a related manner. 

  • Used to indicate that the accompanying statement is related (connected) to a preceding statement or occurrence. 

  • Used to indicate that the accompanying statement may not be true, but has been said to be true. 

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