corncob vs keep to oneself

corncob

verb
  • To defeat (someone) who then refuses to admit defeat. 

  • To disintegrate by the blades becoming severed from the axis 

noun
  • The central cylindrical core of an ear of corn (maize) on which the kernels are attached in rows. 

keep to oneself

verb
  • To refrain from telling or giving; to keep secret, or refuse to share. 

  • To purposely avoid interaction with others; to be introverted. 

How often have the words corncob and keep to oneself occurred in a corpus of books? (source: Google Ngram Viewer )