disunite vs shatter

disunite

verb
  • To disintegrate; to come apart. 

  • To cause disagreement or alienation among or within. 

  • To separate, sever, or split. 

shatter

verb
  • To violently break something into pieces. 

  • To smash, or break into tiny pieces. 

  • To dispirit or emotionally defeat. 

  • Of seeds: to be dispersed upon ripening. 

  • To destroy or disable something. 

noun
  • A (pine) needle. 

  • A form of concentrated cannabis. 

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