calve vs come apart

calve

verb
  • to break off 

  • to shed (a large piece, e.g. an iceberg); to set loose (a mass of ice), e.g. a block of ice (coming off an iceberg) 

  • to give birth to (a calf) 

  • to assist in a cow's giving birth to a calf 

  • to shed a large piece, e.g. an iceberg or a smaller block of ice (coming off an iceberg) 

  • to give birth to a calf 

come apart

verb
  • to break, separate. 

  • Used other than figuratively or idiomatically: see come, apart. 

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