relate vs sever

relate

verb
  • To identify with; to understand. 

  • To interact. 

  • To respond through reaction. 

  • To have a connection. 

  • To bring into a relation, association, or connection (between one thing and another). 

  • To tell in a descriptive way. 

sever

verb
  • To make a separation or distinction; to distinguish. 

  • To disconnect; to disunite; to terminate. 

  • To cut free. 

  • To suffer disjunction; to be parted or separated. 

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