lullaby vs papaya

lullaby

noun
  • A cradlesong, a soothing song to calm children or lull them to sleep. 

verb
  • To sing a lullaby to. 

papaya

noun
  • An orange colour, like that of papaya flesh. 

  • A tropical American evergreen tree, Carica papaya, having large, yellow, edible fruit 

  • The fruit of this tree. 

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