Brother vs mozo

Brother

noun
  • Title of respect for an adult male member of a religious or fraternal order. 

  • A title used to personify or respectfully refer to concepts or animals. 

  • Title of respect for an adult male member of a fraternal/sororal organization, or comrade in a movement, or even a stranger using fictive kin. 

mozo

noun
  • A title of respect for a young man (usually unmarried) with or without a name used. 

  • An unmarried man, a boy. 

  • A male servant, especially an attendant to a bullfighter. 

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