bab vs tadpole

bab

noun
  • Baby 

  • A bait for eels, consisting of a bundle of live worms. 

verb
  • To fish for eels using a bab. 

tadpole

noun
  • A small child. 

  • A child's basic drawing of a human being, having a detailed head but only sticks for the body and limbs. 

  • A type of cargo bike that has two wheels in front and one in back. 

  • The aquatic larva of any amphibian. 

  • A young toad or frog in its larval stage of development that lives in water, has a tail and no legs, and, like a fish, breathes through gills. 

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