mommyhood vs mothering

mommyhood

noun
  • motherhood 

mothering

noun
  • The nurturing of a child by its mother. 

  • The protective behaviour of a mother towards her child. 

  • Nurturing or protective behaviour reminiscent of that performed by a literal mother. 

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