chum vs neighbour

chum

verb
  • To share rooms with someone; to live together. 

  • To cast chum into the water to attract fish. 

  • To accompany. 

  • To lodge (somebody) with another person or people. 

  • To make friends; to socialize. 

noun
  • The chum salmon 

  • A coarse mould for holding the clay while being worked on a whirler, lathe or manually. 

  • A mixture of (frequently rancid) fish parts and blood, dumped into the water as groundbait to attract predator fish, such as sharks 

neighbour

verb
  • To associate intimately with; to be close to. 

  • To be similar to, to be almost the same as. 

  • To be adjacent to 

noun
  • A person living on adjacent or nearby land; a person situated adjacently or nearby; anything (of the same type of thing as the subject) in an adjacent or nearby position. 

  • One who is near in sympathy or confidence. 

  • A fellow human being. 

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