castellated vs contentious

castellated

adj
  • Having grooves or recesses on an upper face. 

  • Castle-like: built or shaped like a castle. 

  • Castled: having or furnished with castles. 

  • Housed or kept in a castle. 

contentious

adj
  • Marked by heated arguments or controversy. 

  • Given to struggling with others out of jealousy or discord. 

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