momma vs mommy

momma

noun
  • mother 

  • One's wife or girlfriend. 

  • A voluptuous woman. 

mommy

noun
  • Mother. 

verb
  • To treat someone like a mother would; to mother someone. 

adj
  • Characteristic of a mother; motherly. 

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