dear heart vs hinny

dear heart

noun
  • Term of affection; sweetheart. 

hinny

noun
  • A term of endearment usually for women. 

  • The hybrid offspring of a stallion (male horse) and a she-ass (female donkey). 

verb
  • To whinny 

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