bub vs childe

bub

noun
  • A baby. 

  • A term of familiar address; bubba; bubby. 

  • A woman's breast. 

  • A young brother; a little boy; a familiar term of address for a small boy. 

  • An alcoholic malt liquor, especially beer. 

childe

noun
  • A child of noble birth. 

  • The cognomen given to the oldest son prior to his taking his father's title. 

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