bridesman vs chaperon

bridesman

noun
  • A male friend or companion of the bridegroom, having various ceremonial duties at a wedding. 

  • A male bridesmaid; a man who attends a bride during her wedding ceremony, as part of the wedding party. 

chaperon

noun
  • An adult who accompanies or supervises one or more young, unmarried men or women during social occasions, usually with the specific intent of preventing some types of social or sexual interactions or illegal behavior. 

  • A device placed on the foreheads of horses which draw the hearse in pompous funerals. 

  • A type of hood, often ornamental or official, with an attached cape and a tail, later worn as a hat with the face hole put over the top of the head instead. 

verb
  • To accompany; to escort. 

  • To mother. 

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