kindred vs synonymous

kindred

adj
  • Of the same nature, or of similar character. 

  • Connected, related, cognate, akin. 

noun
  • A grouping of relatives. 

  • A household or group following the modern pagan faith of Heathenry or Ásatrú. 

  • Affinity, likeness. 

  • Blood relationship. 

  • Distant and close relatives, collectively; kin. 

  • People of the same ethnic descent, not including speaker; brethren. 

  • One who is kindred, literally or figuratively; a kin, kinsman. 

synonymous

adj
  • Having an identical meaning. 

  • Having a similar meaning. 

  • Such that both its forms yield the same sequenced protein. 

  • Of, or being a synonym. 

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