calve vs whelp

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 

whelp

verb
  • To give birth. 

noun
  • One of several wooden strips to prevent wear on a windlass on a clipper-era ship. 

  • An insolent youth; a mere child. 

  • A young offspring of a canid (ursid, felid, pinniped), especially of a dog or a wolf, the young of a bear or similar mammal (lion, tiger, seal); a pup, wolf cub. 

  • A tooth on a sprocket wheel (compare sprocket and cog). 

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