morsel vs nubbin

morsel

noun
  • A small fragment or share of something, commonly applied to food. 

  • A mouthful of food. 

  • A very small amount. 

nubbin

noun
  • A stub, especially a stub of undeveloped corn or fruit or nipple. 

  • A small protuberance, bud, bump, or knob. 

  • The clitoris. 

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