baby of the family vs kidder

baby of the family

noun
  • An adult member of an immediate family who is treated by others in the family, especially the parents, as though they were a child. 

  • The youngest member of an immediate family. 

  • A member of an immediate family who behaves as, or is treated as though they were the youngest member of a family. 

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 baby of the family and kidder occurred in a corpus of books? (source: Google Ngram Viewer )