betrothen vs fiancé

betrothen

noun

  • One who is betrothen or betrothed, i.e. a fiancé or fiancée. 

adj

  • Betrothed 

fiancé

noun

  • A man who is engaged to be married; the man to whom one is engaged. 

  • A person engaged to be married. 

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