doggo vs tyke

doggo

noun
  • A dog. 

adv
  • Only used in lie doggo. 

tyke

noun
  • A mongrel dog. 

  • A Roman Catholic 

  • An initiation level of sports competition for young children 

  • A small child, especially a cheeky or mischievous one 

  • A person from Yorkshire; a Yorkshireman or Yorkshirewoman 

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