baby doll vs jo

baby doll

noun
  • A young attractive woman; sweetheart, darling. 

  • A style of women's nightdress. 

  • A child's doll designed to look like a baby. 

jo

noun
  • Darling, sweetheart. 

  • The staff used in the Japanese martial art of jodo or jojutsu. 

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