calve vs cub

calve

verb
  • to give birth to (a calf) 

  • 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 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 

cub

verb
  • To give birth to cubs. 

  • To hunt fox cubs. 

noun
  • A young man who seeks relationships with older women, or "cougars". 

  • A child, especially an awkward, rude, ill-mannered boy. 

  • A young fox. 

  • Synonym of cub reporter 

  • An adolescent furry character. 

  • The young of certain other animals, including the bear, wolf, lion and tiger. 

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