ba vs papa

ba

noun
  • Father, baba. 

  • A being's soul or personality, represented as a bird-headed figure, which survives after death but must be sustained with offerings of food. 

  • A medieval football game played in parts of Scotland around Christmas and New Year. 

papa

noun
  • Dad, daddy, father; a familiar or old-fashioned term of address to one’s father. 

  • A parish priest in the Greek Orthodox Church. 

  • A pet name for one's grandfather. 

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