dear heart vs kidder

dear heart

noun
  • Term of affection; sweetheart. 

kidder

noun
  • A term of endearment/address for a child or young adult, usually male. 

  • One who kids, or teases light-heartedly. 

  • A kidderminster (carpet) 

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